jme: JMicron Gigabit Ethernet Driver

Supporting JMC250, and JMC260.

Signed-off-by: Guo-Fu Tseng <cooldavid@cooldavid.org>
Acked-and-tested-by: Ethan Hsiao <ethanhsiao@jmicron.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

4 files changed, 4231 insertions, 0 deletions

diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index 5c012cd..069755a 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -2313,6 +2313,18 @@ config ATL1E
 	  To compile this driver as a module, choose M here.  The module
 	  will be called atl1e.
 
+config JME
+	tristate "JMicron(R) PCI-Express Gigabit Ethernet support"
+	depends on PCI
+	select CRC32
+	select MII
+	---help---
+	  This driver supports the PCI-Express gigabit ethernet adapters
+	  based on JMicron JMC250 chipset.
+
+	  To compile this driver as a module, choose M here. The module
+	  will be called jme.
+
 endif # NETDEV_1000
 
 #
diff --git a/drivers/net/Makefile b/drivers/net/Makefile
index d4ec6ba..016e23f 100644
--- a/drivers/net/Makefile
+++ b/drivers/net/Makefile
@@ -20,6 +20,7 @@ obj-$(CONFIG_ATL1E) += atl1e/
 obj-$(CONFIG_GIANFAR) += gianfar_driver.o
 obj-$(CONFIG_TEHUTI) += tehuti.o
 obj-$(CONFIG_ENIC) += enic/
+obj-$(CONFIG_JME) += jme.o
 
 gianfar_driver-objs := gianfar.o \
 		gianfar_ethtool.o \
diff --git a/drivers/net/jme.c b/drivers/net/jme.c
new file mode 100644
index 0000000..f292df5
--- /dev/null
+++ b/drivers/net/jme.c
@@ -0,0 +1,3019 @@
+/*
+ * JMicron JMC2x0 series PCIe Ethernet Linux Device Driver
+ *
+ * Copyright 2008 JMicron Technology Corporation
+ * http://www.jmicron.com/
+ *
+ * Author: Guo-Fu Tseng <cooldavid@cooldavid.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#include <linux/version.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/ethtool.h>
+#include <linux/mii.h>
+#include <linux/crc32.h>
+#include <linux/delay.h>
+#include <linux/spinlock.h>
+#include <linux/in.h>
+#include <linux/ip.h>
+#include <linux/ipv6.h>
+#include <linux/tcp.h>
+#include <linux/udp.h>
+#include <linux/if_vlan.h>
+#include "jme.h"
+
+static int force_pseudohp = -1;
+static int no_pseudohp = -1;
+static int no_extplug = -1;
+module_param(force_pseudohp, int, 0);
+MODULE_PARM_DESC(force_pseudohp,
+	"Enable pseudo hot-plug feature manually by driver instead of BIOS.");
+module_param(no_pseudohp, int, 0);
+MODULE_PARM_DESC(no_pseudohp, "Disable pseudo hot-plug feature.");
+module_param(no_extplug, int, 0);
+MODULE_PARM_DESC(no_extplug,
+	"Do not use external plug signal for pseudo hot-plug.");
+
+static int
+jme_mdio_read(struct net_device *netdev, int phy, int reg)
+{
+	struct jme_adapter *jme = netdev_priv(netdev);
+	int i, val, again = (reg == MII_BMSR) ? 1 : 0;
+
+read_again:
+	jwrite32(jme, JME_SMI, SMI_OP_REQ |
+				smi_phy_addr(phy) |
+				smi_reg_addr(reg));
+
+	wmb();
+	for (i = JME_PHY_TIMEOUT * 50 ; i > 0 ; --i) {
+		udelay(20);
+		val = jread32(jme, JME_SMI);
+		if ((val & SMI_OP_REQ) == 0)
+			break;
+	}
+
+	if (i == 0) {
+		jeprintk(jme->pdev, "phy(%d) read timeout : %d\n", phy, reg);
+		return 0;
+	}
+
+	if (again--)
+		goto read_again;
+
+	return (val & SMI_DATA_MASK) >> SMI_DATA_SHIFT;
+}
+
+static void
+jme_mdio_write(struct net_device *netdev,
+				int phy, int reg, int val)
+{
+	struct jme_adapter *jme = netdev_priv(netdev);
+	int i;
+
+	jwrite32(jme, JME_SMI, SMI_OP_WRITE | SMI_OP_REQ |
+		((val << SMI_DATA_SHIFT) & SMI_DATA_MASK) |
+		smi_phy_addr(phy) | smi_reg_addr(reg));
+
+	wmb();
+	for (i = JME_PHY_TIMEOUT * 50 ; i > 0 ; --i) {
+		udelay(20);
+		if ((jread32(jme, JME_SMI) & SMI_OP_REQ) == 0)
+			break;
+	}
+
+	if (i == 0)
+		jeprintk(jme->pdev, "phy(%d) write timeout : %d\n", phy, reg);
+
+	return;
+}
+
+static inline void
+jme_reset_phy_processor(struct jme_adapter *jme)
+{
+	u32 val;
+
+	jme_mdio_write(jme->dev,
+			jme->mii_if.phy_id,
+			MII_ADVERTISE, ADVERTISE_ALL |
+			ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM);
+
+	if (jme->pdev->device == PCI_DEVICE_ID_JMICRON_JMC250)
+		jme_mdio_write(jme->dev,
+				jme->mii_if.phy_id,
+				MII_CTRL1000,
+				ADVERTISE_1000FULL | ADVERTISE_1000HALF);
+
+	val = jme_mdio_read(jme->dev,
+				jme->mii_if.phy_id,
+				MII_BMCR);
+
+	jme_mdio_write(jme->dev,
+			jme->mii_if.phy_id,
+			MII_BMCR, val | BMCR_RESET);
+
+	return;
+}
+
+static void
+jme_setup_wakeup_frame(struct jme_adapter *jme,
+		u32 *mask, u32 crc, int fnr)
+{
+	int i;
+
+	/*
+	 * Setup CRC pattern
+	 */
+	jwrite32(jme, JME_WFOI, WFOI_CRC_SEL | (fnr & WFOI_FRAME_SEL));
+	wmb();
+	jwrite32(jme, JME_WFODP, crc);
+	wmb();
+
+	/*
+	 * Setup Mask
+	 */
+	for (i = 0 ; i < WAKEUP_FRAME_MASK_DWNR ; ++i) {
+		jwrite32(jme, JME_WFOI,
+				((i << WFOI_MASK_SHIFT) & WFOI_MASK_SEL) |
+				(fnr & WFOI_FRAME_SEL));
+		wmb();
+		jwrite32(jme, JME_WFODP, mask[i]);
+		wmb();
+	}
+}
+
+static inline void
+jme_reset_mac_processor(struct jme_adapter *jme)
+{
+	u32 mask[WAKEUP_FRAME_MASK_DWNR] = {0, 0, 0, 0};
+	u32 crc = 0xCDCDCDCD;
+	u32 gpreg0;
+	int i;
+
+	jwrite32(jme, JME_GHC, jme->reg_ghc | GHC_SWRST);
+	udelay(2);
+	jwrite32(jme, JME_GHC, jme->reg_ghc);
+
+	jwrite32(jme, JME_RXDBA_LO, 0x00000000);
+	jwrite32(jme, JME_RXDBA_HI, 0x00000000);
+	jwrite32(jme, JME_RXQDC, 0x00000000);
+	jwrite32(jme, JME_RXNDA, 0x00000000);
+	jwrite32(jme, JME_TXDBA_LO, 0x00000000);
+	jwrite32(jme, JME_TXDBA_HI, 0x00000000);
+	jwrite32(jme, JME_TXQDC, 0x00000000);
+	jwrite32(jme, JME_TXNDA, 0x00000000);
+
+	jwrite32(jme, JME_RXMCHT_LO, 0x00000000);
+	jwrite32(jme, JME_RXMCHT_HI, 0x00000000);
+	for (i = 0 ; i < WAKEUP_FRAME_NR ; ++i)
+		jme_setup_wakeup_frame(jme, mask, crc, i);
+	if (jme->fpgaver)
+		gpreg0 = GPREG0_DEFAULT | GPREG0_LNKINTPOLL;
+	else
+		gpreg0 = GPREG0_DEFAULT;
+	jwrite32(jme, JME_GPREG0, gpreg0);
+	jwrite32(jme, JME_GPREG1, 0);
+}
+
+static inline void
+jme_reset_ghc_speed(struct jme_adapter *jme)
+{
+	jme->reg_ghc &= ~(GHC_SPEED_1000M | GHC_DPX);
+	jwrite32(jme, JME_GHC, jme->reg_ghc);
+}
+
+static inline void
+jme_clear_pm(struct jme_adapter *jme)
+{
+	jwrite32(jme, JME_PMCS, 0xFFFF0000 | jme->reg_pmcs);
+	pci_set_power_state(jme->pdev, PCI_D0);
+	pci_enable_wake(jme->pdev, PCI_D0, false);
+}
+
+static int
+jme_reload_eeprom(struct jme_adapter *jme)
+{
+	u32 val;
+	int i;
+
+	val = jread32(jme, JME_SMBCSR);
+
+	if (val & SMBCSR_EEPROMD) {
+		val |= SMBCSR_CNACK;
+		jwrite32(jme, JME_SMBCSR, val);
+		val |= SMBCSR_RELOAD;
+		jwrite32(jme, JME_SMBCSR, val);
+		mdelay(12);
+
+		for (i = JME_EEPROM_RELOAD_TIMEOUT; i > 0; --i) {
+			mdelay(1);
+			if ((jread32(jme, JME_SMBCSR) & SMBCSR_RELOAD) == 0)
+				break;
+		}
+
+		if (i == 0) {
+			jeprintk(jme->pdev, "eeprom reload timeout\n");
+			return -EIO;
+		}
+	}
+
+	return 0;
+}
+
+static void
+jme_load_macaddr(struct net_device *netdev)
+{
+	struct jme_adapter *jme = netdev_priv(netdev);
+	unsigned char macaddr[6];
+	u32 val;
+
+	spin_lock_bh(&jme->macaddr_lock);
+	val = jread32(jme, JME_RXUMA_LO);
+	macaddr[0] = (val >>  0) & 0xFF;
+	macaddr[1] = (val >>  8) & 0xFF;
+	macaddr[2] = (val >> 16) & 0xFF;
+	macaddr[3] = (val >> 24) & 0xFF;
+	val = jread32(jme, JME_RXUMA_HI);
+	macaddr[4] = (val >>  0) & 0xFF;
+	macaddr[5] = (val >>  8) & 0xFF;
+	memcpy(netdev->dev_addr, macaddr, 6);
+	spin_unlock_bh(&jme->macaddr_lock);
+}
+
+static inline void
+jme_set_rx_pcc(struct jme_adapter *jme, int p)
+{
+	switch (p) {
+	case PCC_OFF:
+		jwrite32(jme, JME_PCCRX0,
+			((PCC_OFF_TO << PCCRXTO_SHIFT) & PCCRXTO_MASK) |
+			((PCC_OFF_CNT << PCCRX_SHIFT) & PCCRX_MASK));
+		break;
+	case PCC_P1:
+		jwrite32(jme, JME_PCCRX0,
+			((PCC_P1_TO << PCCRXTO_SHIFT) & PCCRXTO_MASK) |
+			((PCC_P1_CNT << PCCRX_SHIFT) & PCCRX_MASK));
+		break;
+	case PCC_P2:
+		jwrite32(jme, JME_PCCRX0,
+			((PCC_P2_TO << PCCRXTO_SHIFT) & PCCRXTO_MASK) |
+			((PCC_P2_CNT << PCCRX_SHIFT) & PCCRX_MASK));
+		break;
+	case PCC_P3:
+		jwrite32(jme, JME_PCCRX0,
+			((PCC_P3_TO << PCCRXTO_SHIFT) & PCCRXTO_MASK) |
+			((PCC_P3_CNT << PCCRX_SHIFT) & PCCRX_MASK));
+		break;
+	default:
+		break;
+	}
+	wmb();
+
+	if (!(test_bit(JME_FLAG_POLL, &jme->flags)))
+		msg_rx_status(jme, "Switched to PCC_P%d\n", p);
+}
+
+static void
+jme_start_irq(struct jme_adapter *jme)
+{
+	register struct dynpcc_info *dpi = &(jme->dpi);
+
+	jme_set_rx_pcc(jme, PCC_P1);
+	dpi->cur		= PCC_P1;
+	dpi->attempt		= PCC_P1;
+	dpi->cnt		= 0;
+
+	jwrite32(jme, JME_PCCTX,
+			((PCC_TX_TO << PCCTXTO_SHIFT) & PCCTXTO_MASK) |
+			((PCC_TX_CNT << PCCTX_SHIFT) & PCCTX_MASK) |
+			PCCTXQ0_EN
+		);
+
+	/*
+	 * Enable Interrupts
+	 */
+	jwrite32(jme, JME_IENS, INTR_ENABLE);
+}
+
+static inline void
+jme_stop_irq(struct jme_adapter *jme)
+{
+	/*
+	 * Disable Interrupts
+	 */
+	jwrite32f(jme, JME_IENC, INTR_ENABLE);
+}
+
+static inline void
+jme_enable_shadow(struct jme_adapter *jme)
+{
+	jwrite32(jme,
+		 JME_SHBA_LO,
+		 ((u32)jme->shadow_dma & ~((u32)0x1F)) | SHBA_POSTEN);
+}
+
+static inline void
+jme_disable_shadow(struct jme_adapter *jme)
+{
+	jwrite32(jme, JME_SHBA_LO, 0x0);
+}
+
+static u32
+jme_linkstat_from_phy(struct jme_adapter *jme)
+{
+	u32 phylink, bmsr;
+
+	phylink = jme_mdio_read(jme->dev, jme->mii_if.phy_id, 17);
+	bmsr = jme_mdio_read(jme->dev, jme->mii_if.phy_id, MII_BMSR);
+	if (bmsr & BMSR_ANCOMP)
+		phylink |= PHY_LINK_AUTONEG_COMPLETE;
+
+	return phylink;
+}
+
+static inline void
+jme_set_phyfifoa(struct jme_adapter *jme)
+{
+	jme_mdio_write(jme->dev, jme->mii_if.phy_id, 27, 0x0004);
+}
+
+static inline void
+jme_set_phyfifob(struct jme_adapter *jme)
+{
+	jme_mdio_write(jme->dev, jme->mii_if.phy_id, 27, 0x0000);
+}
+
+static int
+jme_check_link(struct net_device *netdev, int testonly)
+{
+	struct jme_adapter *jme = netdev_priv(netdev);
+	u32 phylink, ghc, cnt = JME_SPDRSV_TIMEOUT, bmcr;
+	char linkmsg[64];
+	int rc = 0;
+
+	linkmsg[0] = '\0';
+
+	if (jme->fpgaver)
+		phylink = jme_linkstat_from_phy(jme);
+	else
+		phylink = jread32(jme, JME_PHY_LINK);
+
+	if (phylink & PHY_LINK_UP) {
+		if (!(phylink & PHY_LINK_AUTONEG_COMPLETE)) {
+			/*
+			 * If we did not enable AN
+			 * Speed/Duplex Info should be obtained from SMI
+			 */
+			phylink = PHY_LINK_UP;
+
+			bmcr = jme_mdio_read(jme->dev,
+						jme->mii_if.phy_id,
+						MII_BMCR);
+
+			phylink |= ((bmcr & BMCR_SPEED1000) &&
+					(bmcr & BMCR_SPEED100) == 0) ?
+					PHY_LINK_SPEED_1000M :
+					(bmcr & BMCR_SPEED100) ?
+					PHY_LINK_SPEED_100M :
+					PHY_LINK_SPEED_10M;
+
+			phylink |= (bmcr & BMCR_FULLDPLX) ?
+					 PHY_LINK_DUPLEX : 0;
+
+			strcat(linkmsg, "Forced: ");
+		} else {
+			/*
+			 * Keep polling for speed/duplex resolve complete
+			 */
+			while (!(phylink & PHY_LINK_SPEEDDPU_RESOLVED) &&
+				--cnt) {
+
+				udelay(1);
+
+				if (jme->fpgaver)
+					phylink = jme_linkstat_from_phy(jme);
+				else
+					phylink = jread32(jme, JME_PHY_LINK);
+			}
+			if (!cnt)
+				jeprintk(jme->pdev,
+					"Waiting speed resolve timeout.\n");
+
+			strcat(linkmsg, "ANed: ");
+		}
+
+		if (jme->phylink == phylink) {
+			rc = 1;
+			goto out;
+		}
+		if (testonly)
+			goto out;
+
+		jme->phylink = phylink;
+
+		ghc = jme->reg_ghc & ~(GHC_SPEED_10M |
+					GHC_SPEED_100M |
+					GHC_SPEED_1000M |
+					GHC_DPX);
+		switch (phylink & PHY_LINK_SPEED_MASK) {
+		case PHY_LINK_SPEED_10M:
+			ghc |= GHC_SPEED_10M;
+			strcat(linkmsg, "10 Mbps, ");
+			if (is_buggy250(jme->pdev->device, jme->chiprev))
+				jme_set_phyfifoa(jme);
+			break;
+		case PHY_LINK_SPEED_100M:
+			ghc |= GHC_SPEED_100M;
+			strcat(linkmsg, "100 Mbps, ");
+			if (is_buggy250(jme->pdev->device, jme->chiprev))
+				jme_set_phyfifob(jme);
+			break;
+		case PHY_LINK_SPEED_1000M:
+			ghc |= GHC_SPEED_1000M;
+			strcat(linkmsg, "1000 Mbps, ");
+			if (is_buggy250(jme->pdev->device, jme->chiprev))
+				jme_set_phyfifoa(jme);
+			break;
+		default:
+			break;
+		}
+		ghc |= (phylink & PHY_LINK_DUPLEX) ? GHC_DPX : 0;
+
+		strcat(linkmsg, (phylink & PHY_LINK_DUPLEX) ?
+					"Full-Duplex, " :
+					"Half-Duplex, ");
+
+		if (phylink & PHY_LINK_MDI_STAT)
+			strcat(linkmsg, "MDI-X");
+		else
+			strcat(linkmsg, "MDI");
+
+		if (phylink & PHY_LINK_DUPLEX) {
+			jwrite32(jme, JME_TXMCS, TXMCS_DEFAULT);
+		} else {
+			jwrite32(jme, JME_TXMCS, TXMCS_DEFAULT |
+						TXMCS_BACKOFF |
+						TXMCS_CARRIERSENSE |
+						TXMCS_COLLISION);
+			jwrite32(jme, JME_TXTRHD, TXTRHD_TXPEN |
+				((0x2000 << TXTRHD_TXP_SHIFT) & TXTRHD_TXP) |
+				TXTRHD_TXREN |
+				((8 << TXTRHD_TXRL_SHIFT) & TXTRHD_TXRL));
+		}
+
+		jme->reg_ghc = ghc;
+		jwrite32(jme, JME_GHC, ghc);
+
+		msg_link(jme, "Link is up at %s.\n", linkmsg);
+		netif_carrier_on(netdev);
+	} else {
+		if (testonly)
+			goto out;
+
+		msg_link(jme, "Link is down.\n");
+		jme->phylink = 0;
+		netif_carrier_off(netdev);
+	}
+
+out:
+	return rc;
+}
+
+static int
+jme_setup_tx_resources(struct jme_adapter *jme)
+{
+	struct jme_ring *txring = &(jme->txring[0]);
+
+	txring->alloc = dma_alloc_coherent(&(jme->pdev->dev),
+				   TX_RING_ALLOC_SIZE(jme->tx_ring_size),
+				   &(txring->dmaalloc),
+				   GFP_ATOMIC);
+
+	if (!txring->alloc) {
+		txring->desc = NULL;
+		txring->dmaalloc = 0;
+		txring->dma = 0;
+		return -ENOMEM;
+	}
+
+	/*
+	 * 16 Bytes align
+	 */
+	txring->desc		= (void *)ALIGN((unsigned long)(txring->alloc),
+						RING_DESC_ALIGN);
+	txring->dma		= ALIGN(txring->dmaalloc, RING_DESC_ALIGN);
+	txring->next_to_use	= 0;
+	atomic_set(&txring->next_to_clean, 0);
+	atomic_set(&txring->nr_free, jme->tx_ring_size);
+
+	/*
+	 * Initialize Transmit Descriptors
+	 */
+	memset(txring->alloc, 0, TX_RING_ALLOC_SIZE(jme->tx_ring_size));
+	memset(txring->bufinf, 0,
+		sizeof(struct jme_buffer_info) * jme->tx_ring_size);
+
+	return 0;
+}
+
+static void
+jme_free_tx_resources(struct jme_adapter *jme)
+{
+	int i;
+	struct jme_ring *txring = &(jme->txring[0]);
+	struct jme_buffer_info *txbi = txring->bufinf;
+
+	if (txring->alloc) {
+		for (i = 0 ; i < jme->tx_ring_size ; ++i) {
+			txbi = txring->bufinf + i;
+			if (txbi->skb) {
+				dev_kfree_skb(txbi->skb);
+				txbi->skb = NULL;
+			}
+			txbi->mapping		= 0;
+			txbi->len		= 0;
+			txbi->nr_desc		= 0;
+			txbi->start_xmit	= 0;
+		}
+
+		dma_free_coherent(&(jme->pdev->dev),
+				  TX_RING_ALLOC_SIZE(jme->tx_ring_size),
+				  txring->alloc,
+				  txring->dmaalloc);
+
+		txring->alloc		= NULL;
+		txring->desc		= NULL;
+		txring->dmaalloc	= 0;
+		txring->dma		= 0;
+	}
+	txring->next_to_use	= 0;
+	atomic_set(&txring->next_to_clean, 0);
+	atomic_set(&txring->nr_free, 0);
+
+}
+
+static inline void
+jme_enable_tx_engine(struct jme_adapter *jme)
+{
+	/*
+	 * Select Queue 0
+	 */
+	jwrite32(jme, JME_TXCS, TXCS_DEFAULT | TXCS_SELECT_QUEUE0);
+	wmb();
+
+	/*
+	 * Setup TX Queue 0 DMA Bass Address
+	 */
+	jwrite32(jme, JME_TXDBA_LO, (__u64)jme->txring[0].dma & 0xFFFFFFFFUL);
+	jwrite32(jme, JME_TXDBA_HI, (__u64)(jme->txring[0].dma) >> 32);
+	jwrite32(jme, JME_TXNDA, (__u64)jme->txring[0].dma & 0xFFFFFFFFUL);
+
+	/*
+	 * Setup TX Descptor Count
+	 */
+	jwrite32(jme, JME_TXQDC, jme->tx_ring_size);
+
+	/*
+	 * Enable TX Engine
+	 */
+	wmb();
+	jwrite32(jme, JME_TXCS, jme->reg_txcs |
+				TXCS_SELECT_QUEUE0 |
+				TXCS_ENABLE);
+
+}
+
+static inline void
+jme_restart_tx_engine(struct jme_adapter *jme)
+{
+	/*
+	 * Restart TX Engine
+	 */
+	jwrite32(jme, JME_TXCS, jme->reg_txcs |
+				TXCS_SELECT_QUEUE0 |
+				TXCS_ENABLE);
+}
+
+static inline void
+jme_disable_tx_engine(struct jme_adapter *jme)
+{
+	int i;
+	u32 val;
+
+	/*
+	 * Disable TX Engine
+	 */
+	jwrite32(jme, JME_TXCS, jme->reg_txcs | TXCS_SELECT_QUEUE0);
+	wmb();
+
+	val = jread32(jme, JME_TXCS);
+	for (i = JME_TX_DISABLE_TIMEOUT ; (val & TXCS_ENABLE) && i > 0 ; --i) {
+		mdelay(1);
+		val = jread32(jme, JME_TXCS);
+		rmb();
+	}
+
+	if (!i)
+		jeprintk(jme->pdev, "Disable TX engine timeout.\n");
+}
+
+static void
+jme_set_clean_rxdesc(struct jme_adapter *jme, int i)
+{
+	struct jme_ring *rxring = jme->rxring;
+	register struct rxdesc *rxdesc = rxring->desc;
+	struct jme_buffer_info *rxbi = rxring->bufinf;
+	rxdesc += i;
+	rxbi += i;
+
+	rxdesc->dw[0] = 0;
+	rxdesc->dw[1] = 0;
+	rxdesc->desc1.bufaddrh	= cpu_to_le32((__u64)rxbi->mapping >> 32);
+	rxdesc->desc1.bufaddrl	= cpu_to_le32(
+					(__u64)rxbi->mapping & 0xFFFFFFFFUL);
+	rxdesc->desc1.datalen	= cpu_to_le16(rxbi->len);
+	if (jme->dev->features & NETIF_F_HIGHDMA)
+		rxdesc->desc1.flags = RXFLAG_64BIT;
+	wmb();
+	rxdesc->desc1.flags	|= RXFLAG_OWN | RXFLAG_INT;
+}
+
+static int
+jme_make_new_rx_buf(struct jme_adapter *jme, int i)
+{
+	struct jme_ring *rxring = &(jme->rxring[0]);
+	struct jme_buffer_info *rxbi = rxring->bufinf + i;
+	struct sk_buff *skb;
+
+	skb = netdev_alloc_skb(jme->dev,
+		jme->dev->mtu + RX_EXTRA_LEN);
+	if (unlikely(!skb))
+		return -ENOMEM;
+
+	rxbi->skb = skb;
+	rxbi->len = skb_tailroom(skb);
+	rxbi->mapping = pci_map_page(jme->pdev,
+					virt_to_page(skb->data),
+					offset_in_page(skb->data),
+					rxbi->len,
+					PCI_DMA_FROMDEVICE);
+
+	return 0;
+}
+
+static void
+jme_free_rx_buf(struct jme_adapter *jme, int i)
+{
+	struct jme_ring *rxring = &(jme->rxring[0]);
+	struct jme_buffer_info *rxbi = rxring->bufinf;
+	rxbi += i;
+
+	if (rxbi->skb) {
+		pci_unmap_page(jme->pdev,
+				 rxbi->mapping,
+				 rxbi->len,
+				 PCI_DMA_FROMDEVICE);
+		dev_kfree_skb(rxbi->skb);
+		rxbi->skb = NULL;
+		rxbi->mapping = 0;
+		rxbi->len = 0;
+	}
+}
+
+static void
+jme_free_rx_resources(struct jme_adapter *jme)
+{
+	int i;
+	struct jme_ring *rxring = &(jme->rxring[0]);
+
+	if (rxring->alloc) {
+		for (i = 0 ; i < jme->rx_ring_size ; ++i)
+			jme_free_rx_buf(jme, i);
+
+		dma_free_coherent(&(jme->pdev->dev),
+				  RX_RING_ALLOC_SIZE(jme->rx_ring_size),
+				  rxring->alloc,
+				  rxring->dmaalloc);
+		rxring->alloc    = NULL;
+		rxring->desc     = NULL;
+		rxring->dmaalloc = 0;
+		rxring->dma      = 0;
+	}
+	rxring->next_to_use   = 0;
+	atomic_set(&rxring->next_to_clean, 0);
+}
+
+static int
+jme_setup_rx_resources(struct jme_adapter *jme)
+{
+	int i;
+	struct jme_ring *rxring = &(jme->rxring[0]);
+
+	rxring->alloc = dma_alloc_coherent(&(jme->pdev->dev),
+				   RX_RING_ALLOC_SIZE(jme->rx_ring_size),
+				   &(rxring->dmaalloc),
+				   GFP_ATOMIC);
+	if (!rxring->alloc) {
+		rxring->desc = NULL;
+		rxring->dmaalloc = 0;
+		rxring->dma = 0;
+		return -ENOMEM;
+	}
+
+	/*
+	 * 16 Bytes align
+	 */
+	rxring->desc		= (void *)ALIGN((unsigned long)(rxring->alloc),
+						RING_DESC_ALIGN);
+	rxring->dma		= ALIGN(rxring->dmaalloc, RING_DESC_ALIGN);
+	rxring->next_to_use	= 0;
+	atomic_set(&rxring->next_to_clean, 0);
+
+	/*
+	 * Initiallize Receive Descriptors
+	 */
+	for (i = 0 ; i < jme->rx_ring_size ; ++i) {
+		if (unlikely(jme_make_new_rx_buf(jme, i))) {
+			jme_free_rx_resources(jme);
+			return -ENOMEM;
+		}
+
+		jme_set_clean_rxdesc(jme, i);
+	}
+
+	return 0;
+}
+
+static inline void
+jme_enable_rx_engine(struct jme_adapter *jme)
+{
+	/*
+	 * Select Queue 0
+	 */
+	jwrite32(jme, JME_RXCS, jme->reg_rxcs |
+				RXCS_QUEUESEL_Q0);
+	wmb();
+
+	/*
+	 * Setup RX DMA Bass Address
+	 */
+	jwrite32(jme, JME_RXDBA_LO, (__u64)jme->rxring[0].dma & 0xFFFFFFFFUL);
+	jwrite32(jme, JME_RXDBA_HI, (__u64)(jme->rxring[0].dma) >> 32);
+	jwrite32(jme, JME_RXNDA, (__u64)jme->rxring[0].dma & 0xFFFFFFFFUL);
+
+	/*
+	 * Setup RX Descriptor Count
+	 */
+	jwrite32(jme, JME_RXQDC, jme->rx_ring_size);
+
+	/*
+	 * Setup Unicast Filter
+	 */
+	jme_set_multi(jme->dev);
+
+	/*
+	 * Enable RX Engine
+	 */
+	wmb();
+	jwrite32(jme, JME_RXCS, jme->reg_rxcs |
+				RXCS_QUEUESEL_Q0 |
+				RXCS_ENABLE |
+				RXCS_QST);
+}
+
+static inline void
+jme_restart_rx_engine(struct jme_adapter *jme)
+{
+	/*
+	 * Start RX Engine
+	 */
+	jwrite32(jme, JME_RXCS, jme->reg_rxcs |
+				RXCS_QUEUESEL_Q0 |
+				RXCS_ENABLE |
+				RXCS_QST);
+}
+
+static inline void
+jme_disable_rx_engine(struct jme_adapter *jme)
+{
+	int i;
+	u32 val;
+
+	/*
+	 * Disable RX Engine
+	 */
+	jwrite32(jme, JME_RXCS, jme->reg_rxcs);
+	wmb();
+
+	val = jread32(jme, JME_RXCS);
+	for (i = JME_RX_DISABLE_TIMEOUT ; (val & RXCS_ENABLE) && i > 0 ; --i) {
+		mdelay(1);
+		val = jread32(jme, JME_RXCS);
+		rmb();
+	}
+
+	if (!i)
+		jeprintk(jme->pdev, "Disable RX engine timeout.\n");
+
+}
+
+static int
+jme_rxsum_ok(struct jme_adapter *jme, u16 flags)
+{
+	if (!(flags & (RXWBFLAG_TCPON | RXWBFLAG_UDPON | RXWBFLAG_IPV4)))
+		return false;
+
+	if (unlikely(!(flags & RXWBFLAG_MF) &&
+	(flags & RXWBFLAG_TCPON) && !(flags & RXWBFLAG_TCPCS))) {
+		msg_rx_err(jme, "TCP Checksum error.\n");
+		goto out_sumerr;
+	}
+
+	if (unlikely(!(flags & RXWBFLAG_MF) &&
+	(flags & RXWBFLAG_UDPON) && !(flags & RXWBFLAG_UDPCS))) {
+		msg_rx_err(jme, "UDP Checksum error.\n");
+		goto out_sumerr;
+	}
+
+	if (unlikely((flags & RXWBFLAG_IPV4) && !(flags & RXWBFLAG_IPCS))) {
+		msg_rx_err(jme, "IPv4 Checksum error.\n");
+		goto out_sumerr;
+	}
+
+	return true;
+
+out_sumerr:
+	return false;
+}
+
+static void
+jme_alloc_and_feed_skb(struct jme_adapter *jme, int idx)
+{
+	struct jme_ring *rxring = &(jme->rxring[0]);
+	struct rxdesc *rxdesc = rxring->desc;
+	struct jme_buffer_info *rxbi = rxring->bufinf;
+	struct sk_buff *skb;
+	int framesize;
+
+	rxdesc += idx;
+	rxbi += idx;
+
+	skb = rxbi->skb;
+	pci_dma_sync_single_for_cpu(jme->pdev,
+					rxbi->mapping,
+					rxbi->len,
+					PCI_DMA_FROMDEVICE);
+
+	if (unlikely(jme_make_new_rx_buf(jme, idx))) {
+		pci_dma_sync_single_for_device(jme->pdev,
+						rxbi->mapping,
+						rxbi->len,
+						PCI_DMA_FROMDEVICE);
+
+		++(NET_STAT(jme).rx_dropped);
+	} else {
+		framesize = le16_to_cpu(rxdesc->descwb.framesize)
+				- RX_PREPAD_SIZE;
+
+		skb_reserve(skb, RX_PREPAD_SIZE);
+		skb_put(skb, framesize);
+		skb->protocol = eth_type_trans(skb, jme->dev);
+
+		if (jme_rxsum_ok(jme, rxdesc->descwb.flags))
+			skb->ip_summed = CHECKSUM_UNNECESSARY;
+		else
+			skb->ip_summed = CHECKSUM_NONE;
+
+		if (rxdesc->descwb.flags & RXWBFLAG_TAGON) {
+			if (jme->vlgrp) {
+				jme->jme_vlan_rx(skb, jme->vlgrp,
+					le32_to_cpu(rxdesc->descwb.vlan));
+				NET_STAT(jme).rx_bytes += 4;
+			}
+		} else {
+			jme->jme_rx(skb);
+		}
+
+		if ((le16_to_cpu(rxdesc->descwb.flags) & RXWBFLAG_DEST) ==
+				RXWBFLAG_DEST_MUL)
+			++(NET_STAT(jme).multicast);
+
+		jme->dev->last_rx = jiffies;
+		NET_STAT(jme).rx_bytes += framesize;
+		++(NET_STAT(jme).rx_packets);
+	}
+
+	jme_set_clean_rxdesc(jme, idx);
+
+}
+
+static int
+jme_process_receive(struct jme_adapter *jme, int limit)
+{
+	struct jme_ring *rxring = &(jme->rxring[0]);
+	struct rxdesc *rxdesc = rxring->desc;
+	int i, j, ccnt, desccnt, mask = jme->rx_ring_mask;
+
+	if (unlikely(!atomic_dec_and_test(&jme->rx_cleaning)))
+		goto out_inc;
+
+	if (unlikely(atomic_read(&jme->link_changing) != 1))
+		goto out_inc;
+
+	if (unlikely(!netif_carrier_ok(jme->dev)))
+		goto out_inc;
+
+	i = atomic_read(&rxring->next_to_clean);
+	while (limit-- > 0) {
+		rxdesc = rxring->desc;
+		rxdesc += i;
+
+		if ((rxdesc->descwb.flags & RXWBFLAG_OWN) ||
+		!(rxdesc->descwb.desccnt & RXWBDCNT_WBCPL))
+			goto out;
+
+		desccnt = rxdesc->descwb.desccnt & RXWBDCNT_DCNT;
+
+		if (unlikely(desccnt > 1 ||
+		rxdesc->descwb.errstat & RXWBERR_ALLERR)) {
+
+			if (rxdesc->descwb.errstat & RXWBERR_CRCERR)
+				++(NET_STAT(jme).rx_crc_errors);
+			else if (rxdesc->descwb.errstat & RXWBERR_OVERUN)
+				++(NET_STAT(jme).rx_fifo_errors);
+			else
+				++(NET_STAT(jme).rx_errors);
+
+			if (desccnt > 1)
+				limit -= desccnt - 1;
+
+			for (j = i, ccnt = desccnt ; ccnt-- ; ) {
+				jme_set_clean_rxdesc(jme, j);
+				j = (j + 1) & (mask);
+			}
+
+		} else {
+			jme_alloc_and_feed_skb(jme, i);
+		}
+
+		i = (i + desccnt) & (mask);
+	}
+
+out:
+	atomic_set(&rxring->next_to_clean, i);
+
+out_inc:
+	atomic_inc(&jme->rx_cleaning);
+
+	return limit > 0 ? limit : 0;
+
+}
+
+static void
+jme_attempt_pcc(struct dynpcc_info *dpi, int atmp)
+{
+	if (likely(atmp == dpi->cur)) {
+		dpi->cnt = 0;
+		return;
+	}
+
+	if (dpi->attempt == atmp) {
+		++(dpi->cnt);
+	} else {
+		dpi->attempt = atmp;
+		dpi->cnt = 0;
+	}
+
+}
+
+static void
+jme_dynamic_pcc(struct jme_adapter *jme)
+{
+	register struct dynpcc_info *dpi = &(jme->dpi);
+
+	if ((NET_STAT(jme).rx_bytes - dpi->last_bytes) > PCC_P3_THRESHOLD)
+		jme_attempt_pcc(dpi, PCC_P3);
+	else if ((NET_STAT(jme).rx_packets - dpi->last_pkts) > PCC_P2_THRESHOLD
+	|| dpi->intr_cnt > PCC_INTR_THRESHOLD)
+		jme_attempt_pcc(dpi, PCC_P2);
+	else
+		jme_attempt_pcc(dpi, PCC_P1);
+
+	if (unlikely(dpi->attempt != dpi->cur && dpi->cnt > 5)) {
+		if (dpi->attempt < dpi->cur)
+			tasklet_schedule(&jme->rxclean_task);
+		jme_set_rx_pcc(jme, dpi->attempt);
+		dpi->cur = dpi->attempt;
+		dpi->cnt = 0;
+	}
+}
+
+static void
+jme_start_pcc_timer(struct jme_adapter *jme)
+{
+	struct dynpcc_info *dpi = &(jme->dpi);
+	dpi->last_bytes		= NET_STAT(jme).rx_bytes;
+	dpi->last_pkts		= NET_STAT(jme).rx_packets;
+	dpi->intr_cnt		= 0;
+	jwrite32(jme, JME_TMCSR,
+		TMCSR_EN | ((0xFFFFFF - PCC_INTERVAL_US) & TMCSR_CNT));
+}
+
+static inline void
+jme_stop_pcc_timer(struct jme_adapter *jme)
+{
+	jwrite32(jme, JME_TMCSR, 0);
+}
+
+static void
+jme_shutdown_nic(struct jme_adapter *jme)
+{
+	u32 phylink;
+
+	phylink = jme_linkstat_from_phy(jme);
+
+	if (!(phylink & PHY_LINK_UP)) {
+		/*
+		 * Disable all interrupt before issue timer
+		 */
+		jme_stop_irq(jme);
+		jwrite32(jme, JME_TIMER2, TMCSR_EN | 0xFFFFFE);
+	}
+}
+
+static void
+jme_pcc_tasklet(unsigned long arg)
+{
+	struct jme_adapter *jme = (struct jme_adapter *)arg;
+	struct net_device *netdev = jme->dev;
+
+	if (unlikely(test_bit(JME_FLAG_SHUTDOWN, &jme->flags))) {
+		jme_shutdown_nic(jme);
+		return;
+	}
+
+	if (unlikely(!netif_carrier_ok(netdev) ||
+		(atomic_read(&jme->link_changing) != 1)
+	)) {
+		jme_stop_pcc_timer(jme);
+		return;
+	}
+
+	if (!(test_bit(JME_FLAG_POLL, &jme->flags)))
+		jme_dynamic_pcc(jme);
+
+	jme_start_pcc_timer(jme);
+}
+
+static inline void
+jme_polling_mode(struct jme_adapter *jme)
+{
+	jme_set_rx_pcc(jme, PCC_OFF);
+}
+
+static inline void
+jme_interrupt_mode(struct jme_adapter *jme)
+{
+	jme_set_rx_pcc(jme, PCC_P1);
+}
+
+static inline int
+jme_pseudo_hotplug_enabled(struct jme_adapter *jme)
+{
+	u32 apmc;
+	apmc = jread32(jme, JME_APMC);
+	return apmc & JME_APMC_PSEUDO_HP_EN;
+}
+
+static void
+jme_start_shutdown_timer(struct jme_adapter *jme)
+{
+	u32 apmc;
+
+	apmc = jread32(jme, JME_APMC) | JME_APMC_PCIE_SD_EN;
+	apmc &= ~JME_APMC_EPIEN_CTRL;
+	if (!no_extplug) {
+		jwrite32f(jme, JME_APMC, apmc | JME_APMC_EPIEN_CTRL_EN);
+		wmb();
+	}
+	jwrite32f(jme, JME_APMC, apmc);
+
+	jwrite32f(jme, JME_TIMER2, 0);
+	set_bit(JME_FLAG_SHUTDOWN, &jme->flags);
+	jwrite32(jme, JME_TMCSR,
+		TMCSR_EN | ((0xFFFFFF - APMC_PHP_SHUTDOWN_DELAY) & TMCSR_CNT));
+}
+
+static void
+jme_stop_shutdown_timer(struct jme_adapter *jme)
+{
+	u32 apmc;
+
+	jwrite32f(jme, JME_TMCSR, 0);
+	jwrite32f(jme, JME_TIMER2, 0);
+	clear_bit(JME_FLAG_SHUTDOWN, &jme->flags);
+
+	apmc = jread32(jme, JME_APMC);
+	apmc &= ~(JME_APMC_PCIE_SD_EN | JME_APMC_EPIEN_CTRL);
+	jwrite32f(jme, JME_APMC, apmc | JME_APMC_EPIEN_CTRL_DIS);
+	wmb();
+	jwrite32f(jme, JME_APMC, apmc);
+}
+
+static void
+jme_link_change_tasklet(unsigned long arg)
+{
+	struct jme_adapter *jme = (struct jme_adapter *)arg;
+	struct net_device *netdev = jme->dev;
+	int rc;
+
+	while (!atomic_dec_and_test(&jme->link_changing)) {
+		atomic_inc(&jme->link_changing);
+		msg_intr(jme, "Get link change lock failed.\n");
+		while (atomic_read(&jme->link_changing) != 1)
+			msg_intr(jme, "Waiting link change lock.\n");
+	}
+
+	if (jme_check_link(netdev, 1) && jme->old_mtu == netdev->mtu)
+		goto out;
+
+	jme->old_mtu = netdev->mtu;
+	netif_stop_queue(netdev);
+	if (jme_pseudo_hotplug_enabled(jme))
+		jme_stop_shutdown_timer(jme);
+
+	jme_stop_pcc_timer(jme);
+	tasklet_disable(&jme->txclean_task);
+	tasklet_disable(&jme->rxclean_task);
+	tasklet_disable(&jme->rxempty_task);
+
+	if (netif_carrier_ok(netdev)) {
+		jme_reset_ghc_speed(jme);
+		jme_disable_rx_engine(jme);
+		jme_disable_tx_engine(jme);
+		jme_reset_mac_processor(jme);
+		jme_free_rx_resources(jme);
+		jme_free_tx_resources(jme);
+
+		if (test_bit(JME_FLAG_POLL, &jme->flags))
+			jme_polling_mode(jme);
+
+		netif_carrier_off(netdev);
+	}
+
+	jme_check_link(netdev, 0);
+	if (netif_carrier_ok(netdev)) {
+		rc = jme_setup_rx_resources(jme);
+		if (rc) {
+			jeprintk(jme->pdev, "Allocating resources for RX error"
+				", Device STOPPED!\n");
+			goto out_enable_tasklet;
+		}
+
+		rc = jme_setup_tx_resources(jme);
+		if (rc) {
+			jeprintk(jme->pdev, "Allocating resources for TX error"
+				", Device STOPPED!\n");
+			goto err_out_free_rx_resources;
+		}
+
+		jme_enable_rx_engine(jme);
+		jme_enable_tx_engine(jme);
+
+		netif_start_queue(netdev);
+
+		if (test_bit(JME_FLAG_POLL, &jme->flags))
+			jme_interrupt_mode(jme);
+
+		jme_start_pcc_timer(jme);
+	} else if (jme_pseudo_hotplug_enabled(jme)) {
+		jme_start_shutdown_timer(jme);
+	}
+
+	goto out_enable_tasklet;
+
+err_out_free_rx_resources:
+	jme_free_rx_resources(jme);
+out_enable_tasklet:
+	tasklet_enable(&jme->txclean_task);
+	tasklet_hi_enable(&jme->rxclean_task);
+	tasklet_hi_enable(&jme->rxempty_task);
+out:
+	atomic_inc(&jme->link_changing);
+}
+
+static void
+jme_rx_clean_tasklet(unsigned long arg)
+{
+	struct jme_adapter *jme = (struct jme_adapter *)arg;
+	struct dynpcc_info *dpi = &(jme->dpi);
+
+	jme_process_receive(jme, jme->rx_ring_size);
+	++(dpi->intr_cnt);
+
+}
+
+static int
+jme_poll(JME_NAPI_HOLDER(holder), JME_NAPI_WEIGHT(budget))
+{
+	struct jme_adapter *jme = jme_napi_priv(holder);
+	struct net_device *netdev = jme->dev;
+	int rest;
+
+	rest = jme_process_receive(jme, JME_NAPI_WEIGHT_VAL(budget));
+
+	while (atomic_read(&jme->rx_empty) > 0) {
+		atomic_dec(&jme->rx_empty);
+		++(NET_STAT(jme).rx_dropped);
+		jme_restart_rx_engine(jme);
+	}
+	atomic_inc(&jme->rx_empty);
+
+	if (rest) {
+		JME_RX_COMPLETE(netdev, holder);
+		jme_interrupt_mode(jme);
+	}
+
+	JME_NAPI_WEIGHT_SET(budget, rest);
+	return JME_NAPI_WEIGHT_VAL(budget) - rest;
+}
+
+static void
+jme_rx_empty_tasklet(unsigned long arg)
+{
+	struct jme_adapter *jme = (struct jme_adapter *)arg;
+
+	if (unlikely(atomic_read(&jme->link_changing) != 1))
+		return;
+
+	if (unlikely(!netif_carrier_ok(jme->dev)))
+		return;
+
+	msg_rx_status(jme, "RX Queue Full!\n");
+
+	jme_rx_clean_tasklet(arg);
+
+	while (atomic_read(&jme->rx_empty) > 0) {
+		atomic_dec(&jme->rx_empty);
+		++(NET_STAT(jme).rx_dropped);
+		jme_restart_rx_engine(jme);
+	}
+	atomic_inc(&jme->rx_empty);
+}
+
+static void
+jme_wake_queue_if_stopped(struct jme_adapter *jme)
+{
+	struct jme_ring *txring = jme->txring;
+
+	smp_wmb();
+	if (unlikely(netif_queue_stopped(jme->dev) &&
+	atomic_read(&txring->nr_free) >= (jme->tx_wake_threshold))) {
+		msg_tx_done(jme, "TX Queue Waked.\n");
+		netif_wake_queue(jme->dev);
+	}
+
+}
+
+static void
+jme_tx_clean_tasklet(unsigned long arg)
+{
+	struct jme_adapter *jme = (struct jme_adapter *)arg;
+	struct jme_ring *txring = &(jme->txring[0]);
+	struct txdesc *txdesc = txring->desc;
+	struct jme_buffer_info *txbi = txring->bufinf, *ctxbi, *ttxbi;
+	int i, j, cnt = 0, max, err, mask;
+
+	tx_dbg(jme, "Into txclean.\n");
+
+	if (unlikely(!atomic_dec_and_test(&jme->tx_cleaning)))
+		goto out;
+
+	if (unlikely(atomic_read(&jme->link_changing) != 1))
+		goto out;
+
+	if (unlikely(!netif_carrier_ok(jme->dev)))
+		goto out;
+
+	max = jme->tx_ring_size - atomic_read(&txring->nr_free);
+	mask = jme->tx_ring_mask;
+
+	for (i = atomic_read(&txring->next_to_clean) ; cnt < max ; ) {
+
+		ctxbi = txbi + i;
+
+		if (likely(ctxbi->skb &&
+		!(txdesc[i].descwb.flags & TXWBFLAG_OWN))) {
+
+			tx_dbg(jme, "txclean: %d+%d@%lu\n",
+					i, ctxbi->nr_desc, jiffies);
+
+			err = txdesc[i].descwb.flags & TXWBFLAG_ALLERR;
+
+			for (j = 1 ; j < ctxbi->nr_desc ; ++j) {
+				ttxbi = txbi + ((i + j) & (mask));
+				txdesc[(i + j) & (mask)].dw[0] = 0;
+
+				pci_unmap_page(jme->pdev,
+						 ttxbi->mapping,
+						 ttxbi->len,
+						 PCI_DMA_TODEVICE);
+
+				ttxbi->mapping = 0;
+				ttxbi->len = 0;
+			}
+
+			dev_kfree_skb(ctxbi->skb);
+
+			cnt += ctxbi->nr_desc;
+
+			if (unlikely(err)) {
+				++(NET_STAT(jme).tx_carrier_errors);
+			} else {
+				++(NET_STAT(jme).tx_packets);
+				NET_STAT(jme).tx_bytes += ctxbi->len;
+			}
+
+			ctxbi->skb = NULL;
+			ctxbi->len = 0;
+			ctxbi->start_xmit = 0;
+
+		} else {
+			break;
+		}
+
+		i = (i + ctxbi->nr_desc) & mask;
+
+		ctxbi->nr_desc = 0;
+	}
+
+	tx_dbg(jme, "txclean: done %d@%lu.\n", i, jiffies);
+	atomic_set(&txring->next_to_clean, i);
+	atomic_add(cnt, &txring->nr_free);
+
+	jme_wake_queue_if_stopped(jme);
+
+out:
+	atomic_inc(&jme->tx_cleaning);
+}
+
+static void
+jme_intr_msi(struct jme_adapter *jme, u32 intrstat)
+{
+	/*
+	 * Disable interrupt
+	 */
+	jwrite32f(jme, JME_IENC, INTR_ENABLE);
+
+	if (intrstat & (INTR_LINKCH | INTR_SWINTR)) {
+		/*
+		 * Link change event is critical
+		 * all other events are ignored
+		 */
+		jwrite32(jme, JME_IEVE, intrstat);
+		tasklet_schedule(&jme->linkch_task);
+		goto out_reenable;
+	}
+
+	if (intrstat & INTR_TMINTR) {
+		jwrite32(jme, JME_IEVE, INTR_TMINTR);
+		tasklet_schedule(&jme->pcc_task);
+	}
+
+	if (intrstat & (INTR_PCCTXTO | INTR_PCCTX)) {
+		jwrite32(jme, JME_IEVE, INTR_PCCTXTO | INTR_PCCTX | INTR_TX0);
+		tasklet_schedule(&jme->txclean_task);
+	}
+
+	if ((intrstat & (INTR_PCCRX0TO | INTR_PCCRX0 | INTR_RX0EMP))) {
+		jwrite32(jme, JME_IEVE, (intrstat & (INTR_PCCRX0TO |
+						     INTR_PCCRX0 |
+						     INTR_RX0EMP)) |
+					INTR_RX0);
+	}
+
+	if (test_bit(JME_FLAG_POLL, &jme->flags)) {
+		if (intrstat & INTR_RX0EMP)
+			atomic_inc(&jme->rx_empty);
+
+		if ((intrstat & (INTR_PCCRX0TO | INTR_PCCRX0 | INTR_RX0EMP))) {
+			if (likely(JME_RX_SCHEDULE_PREP(jme))) {
+				jme_polling_mode(jme);
+				JME_RX_SCHEDULE(jme);
+			}
+		}
+	} else {
+		if (intrstat & INTR_RX0EMP) {
+			atomic_inc(&jme->rx_empty);
+			tasklet_hi_schedule(&jme->rxempty_task);
+		} else if (intrstat & (INTR_PCCRX0TO | INTR_PCCRX0)) {
+			tasklet_hi_schedule(&jme->rxclean_task);
+		}
+	}
+
+out_reenable:
+	/*
+	 * Re-enable interrupt
+	 */
+	jwrite32f(jme, JME_IENS, INTR_ENABLE);
+}
+
+static irqreturn_t
+jme_intr(int irq, void *dev_id)
+{
+	struct net_device *netdev = dev_id;
+	struct jme_adapter *jme = netdev_priv(netdev);
+	u32 intrstat;
+
+	intrstat = jread32(jme, JME_IEVE);
+
+	/*
+	 * Check if it's really an interrupt for us
+	 */
+	if (unlikely(intrstat == 0))
+		return IRQ_NONE;
+
+	/*
+	 * Check if the device still exist
+	 */
+	if (unlikely(intrstat == ~((typeof(intrstat))0)))
+		return IRQ_NONE;
+
+	jme_intr_msi(jme, intrstat);
+
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t
+jme_msi(int irq, void *dev_id)
+{
+	struct net_device *netdev = dev_id;
+	struct jme_adapter *jme = netdev_priv(netdev);
+	u32 intrstat;
+
+	pci_dma_sync_single_for_cpu(jme->pdev,
+				    jme->shadow_dma,
+				    sizeof(u32) * SHADOW_REG_NR,
+				    PCI_DMA_FROMDEVICE);
+	intrstat = jme->shadow_regs[SHADOW_IEVE];
+	jme->shadow_regs[SHADOW_IEVE] = 0;
+
+	jme_intr_msi(jme, intrstat);
+
+	return IRQ_HANDLED;
+}
+
+static void
+jme_reset_link(struct jme_adapter *jme)
+{
+	jwrite32(jme, JME_TMCSR, TMCSR_SWIT);
+}
+
+static void
+jme_restart_an(struct jme_adapter *jme)
+{
+	u32 bmcr;
+
+	spin_lock_bh(&jme->phy_lock);
+	bmcr = jme_mdio_read(jme->dev, jme->mii_if.phy_id, MII_BMCR);
+	bmcr |= (BMCR_ANENABLE | BMCR_ANRESTART);
+	jme_mdio_write(jme->dev, jme->mii_if.phy_id, MII_BMCR, bmcr);
+	spin_unlock_bh(&jme->phy_lock);
+}
+
+static int
+jme_request_irq(struct jme_adapter *jme)
+{
+	int rc;
+	struct net_device *netdev = jme->dev;
+	irq_handler_t handler = jme_intr;
+	int irq_flags = IRQF_SHARED;
+
+	if (!pci_enable_msi(jme->pdev)) {
+		set_bit(JME_FLAG_MSI, &jme->flags);
+		handler = jme_msi;
+		irq_flags = 0;
+	}
+
+	rc = request_irq(jme->pdev->irq, handler, irq_flags, netdev->name,
+			  netdev);
+	if (rc) {
+		jeprintk(jme->pdev,
+			"Unable to request %s interrupt (return: %d)\n",
+			test_bit(JME_FLAG_MSI, &jme->flags) ? "MSI" : "INTx",
+			rc);
+
+		if (test_bit(JME_FLAG_MSI, &jme->flags)) {
+			pci_disable_msi(jme->pdev);
+			clear_bit(JME_FLAG_MSI, &jme->flags);
+		}
+	} else {
+		netdev->irq = jme->pdev->irq;
+	}
+
+	return rc;
+}
+
+static void
+jme_free_irq(struct jme_adapter *jme)
+{
+	free_irq(jme->pdev->irq, jme->dev);
+	if (test_bit(JME_FLAG_MSI, &jme->flags)) {
+		pci_disable_msi(jme->pdev);
+		clear_bit(JME_FLAG_MSI, &jme->flags);
+		jme->dev->irq = jme->pdev->irq;
+	}
+}
+
+static int
+jme_open(struct net_device *netdev)
+{
+	struct jme_adapter *jme = netdev_priv(netdev);
+	int rc;
+
+	jme_clear_pm(jme);
+	JME_NAPI_ENABLE(jme);
+
+	tasklet_enable(&jme->txclean_task);
+	tasklet_hi_enable(&jme->rxclean_task);
+	tasklet_hi_enable(&jme->rxempty_task);
+
+	rc = jme_request_irq(jme);
+	if (rc)
+		goto err_out;
+
+	jme_enable_shadow(jme);
+	jme_start_irq(jme);
+
+	if (test_bit(JME_FLAG_SSET, &jme->flags))
+		jme_set_settings(netdev, &jme->old_ecmd);
+	else
+		jme_reset_phy_processor(jme);
+
+	jme_reset_link(jme);
+
+	return 0;
+
+err_out:
+	netif_stop_queue(netdev);
+	netif_carrier_off(netdev);
+	return rc;
+}
+
+static void
+jme_set_100m_half(struct jme_adapter *jme)
+{
+	u32 bmcr, tmp;
+
+	bmcr = jme_mdio_read(jme->dev, jme->mii_if.phy_id, MII_BMCR);
+	tmp = bmcr & ~(BMCR_ANENABLE | BMCR_SPEED100 |
+		       BMCR_SPEED1000 | BMCR_FULLDPLX);
+	tmp |= BMCR_SPEED100;
+
+	if (bmcr != tmp)
+		jme_mdio_write(jme->dev, jme->mii_if.phy_id, MII_BMCR, tmp);
+
+	if (jme->fpgaver)
+		jwrite32(jme, JME_GHC, GHC_SPEED_100M | GHC_LINK_POLL);
+	else
+		jwrite32(jme, JME_GHC, GHC_SPEED_100M);
+}
+
+#define JME_WAIT_LINK_TIME 2000 /* 2000ms */
+static void
+jme_wait_link(struct jme_adapter *jme)
+{
+	u32 phylink, to = JME_WAIT_LINK_TIME;
+
+	mdelay(1000);
+	phylink = jme_linkstat_from_phy(jme);
+	while (!(phylink & PHY_LINK_UP) && (to -= 10) > 0) {
+		mdelay(10);
+		phylink = jme_linkstat_from_phy(jme);
+	}
+}
+
+static inline void
+jme_phy_off(struct jme_adapter *jme)
+{
+	jme_mdio_write(jme->dev, jme->mii_if.phy_id, MII_BMCR, BMCR_PDOWN);
+}
+
+static int
+jme_close(struct net_device *netdev)
+{
+	struct jme_adapter *jme = netdev_priv(netdev);
+
+	netif_stop_queue(netdev);
+	netif_carrier_off(netdev);
+
+	jme_stop_irq(jme);
+	jme_disable_shadow(jme);
+	jme_free_irq(jme);
+
+	JME_NAPI_DISABLE(jme);
+
+	tasklet_kill(&jme->linkch_task);
+	tasklet_kill(&jme->txclean_task);
+	tasklet_kill(&jme->rxclean_task);
+	tasklet_kill(&jme->rxempty_task);
+
+	jme_reset_ghc_speed(jme);
+	jme_disable_rx_engine(jme);
+	jme_disable_tx_engine(jme);
+	jme_reset_mac_processor(jme);
+	jme_free_rx_resources(jme);
+	jme_free_tx_resources(jme);
+	jme->phylink = 0;
+	jme_phy_off(jme);
+
+	return 0;
+}
+
+static int
+jme_alloc_txdesc(struct jme_adapter *jme,
+			struct sk_buff *skb)
+{
+	struct jme_ring *txring = jme->txring;
+	int idx, nr_alloc, mask = jme->tx_ring_mask;
+
+	idx = txring->next_to_use;
+	nr_alloc = skb_shinfo(skb)->nr_frags + 2;
+
+	if (unlikely(atomic_read(&txring->nr_free) < nr_alloc))
+		return -1;
+
+	atomic_sub(nr_alloc, &txring->nr_free);
+
+	txring->next_to_use = (txring->next_to_use + nr_alloc) & mask;
+
+	return idx;
+}
+
+static void
+jme_fill_tx_map(struct pci_dev *pdev,
+		struct txdesc *txdesc,
+		struct jme_buffer_info *txbi,
+		struct page *page,
+		u32 page_offset,
+		u32 len,
+		u8 hidma)
+{
+	dma_addr_t dmaaddr;
+
+	dmaaddr = pci_map_page(pdev,
+				page,
+				page_offset,
+				len,
+				PCI_DMA_TODEVICE);
+
+	pci_dma_sync_single_for_device(pdev,
+				       dmaaddr,
+				       len,
+				       PCI_DMA_TODEVICE);
+
+	txdesc->dw[0] = 0;
+	txdesc->dw[1] = 0;
+	txdesc->desc2.flags	= TXFLAG_OWN;
+	txdesc->desc2.flags	|= (hidma) ? TXFLAG_64BIT : 0;
+	txdesc->desc2.datalen	= cpu_to_le16(len);
+	txdesc->desc2.bufaddrh	= cpu_to_le32((__u64)dmaaddr >> 32);
+	txdesc->desc2.bufaddrl	= cpu_to_le32(
+					(__u64)dmaaddr & 0xFFFFFFFFUL);
+
+	txbi->mapping = dmaaddr;
+	txbi->len = len;
+}
+
+static void
+jme_map_tx_skb(struct jme_adapter *jme, struct sk_buff *skb, int idx)
+{
+	struct jme_ring *txring = jme->txring;
+	struct txdesc *txdesc = txring->desc, *ctxdesc;
+	struct jme_buffer_info *txbi = txring->bufinf, *ctxbi;
+	u8 hidma = jme->dev->features & NETIF_F_HIGHDMA;
+	int i, nr_frags = skb_shinfo(skb)->nr_frags;
+	int mask = jme->tx_ring_mask;
+	struct skb_frag_struct *frag;
+	u32 len;
+
+	for (i = 0 ; i < nr_frags ; ++i) {
+		frag = &skb_shinfo(skb)->frags[i];
+		ctxdesc = txdesc + ((idx + i + 2) & (mask));
+		ctxbi = txbi + ((idx + i + 2) & (mask));
+
+		jme_fill_tx_map(jme->pdev, ctxdesc, ctxbi, frag->page,
+				 frag->page_offset, frag->size, hidma);
+	}
+
+	len = skb_is_nonlinear(skb) ? skb_headlen(skb) : skb->len;
+	ctxdesc = txdesc + ((idx + 1) & (mask));
+	ctxbi = txbi + ((idx + 1) & (mask));
+	jme_fill_tx_map(jme->pdev, ctxdesc, ctxbi, virt_to_page(skb->data),
+			offset_in_page(skb->data), len, hidma);
+
+}
+
+static int
+jme_expand_header(struct jme_adapter *jme, struct sk_buff *skb)
+{
+	if (unlikely(skb_shinfo(skb)->gso_size &&
+			skb_header_cloned(skb) &&
+			pskb_expand_head(skb, 0, 0, GFP_ATOMIC))) {
+		dev_kfree_skb(skb);
+		return -1;
+	}
+
+	return 0;
+}
+
+static int
+jme_tx_tso(struct sk_buff *skb,
+		u16 *mss, u8 *flags)
+{
+	*mss = skb_shinfo(skb)->gso_size << TXDESC_MSS_SHIFT;
+	if (*mss) {
+		*flags |= TXFLAG_LSEN;
+
+		if (skb->protocol == htons(ETH_P_IP)) {
+			struct iphdr *iph = ip_hdr(skb);
+
+			iph->check = 0;
+			tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr,
+								iph->daddr, 0,
+								IPPROTO_TCP,
+								0);
+		} else {
+			struct ipv6hdr *ip6h = ipv6_hdr(skb);
+
+			tcp_hdr(skb)->check = ~csum_ipv6_magic(&ip6h->saddr,
+								&ip6h->daddr, 0,
+								IPPROTO_TCP,
+								0);
+		}
+
+		return 0;
+	}
+
+	return 1;
+}
+
+static void
+jme_tx_csum(struct jme_adapter *jme, struct sk_buff *skb, u8 *flags)
+{
+	if (skb->ip_summed == CHECKSUM_PARTIAL) {
+		u8 ip_proto;
+
+		switch (skb->protocol) {
+		case htons(ETH_P_IP):
+			ip_proto = ip_hdr(skb)->protocol;
+			break;
+		case htons(ETH_P_IPV6):
+			ip_proto = ipv6_hdr(skb)->nexthdr;
+			break;
+		default:
+			ip_proto = 0;
+			break;
+		}
+
+		switch (ip_proto) {
+		case IPPROTO_TCP:
+			*flags |= TXFLAG_TCPCS;
+			break;
+		case IPPROTO_UDP:
+			*flags |= TXFLAG_UDPCS;
+			break;
+		default:
+			msg_tx_err(jme, "Error upper layer protocol.\n");
+			break;
+		}
+	}
+}
+
+static inline void
+jme_tx_vlan(struct sk_buff *skb, u16 *vlan, u8 *flags)
+{
+	if (vlan_tx_tag_present(skb)) {
+		*flags |= TXFLAG_TAGON;
+		*vlan = vlan_tx_tag_get(skb);
+	}
+}
+
+static int
+jme_fill_first_tx_desc(struct jme_adapter *jme, struct sk_buff *skb, int idx)
+{
+	struct jme_ring *txring = jme->txring;
+	struct txdesc *txdesc;
+	struct jme_buffer_info *txbi;
+	u8 flags;
+
+	txdesc = (struct txdesc *)txring->desc + idx;
+	txbi = txring->bufinf + idx;
+
+	txdesc->dw[0] = 0;
+	txdesc->dw[1] = 0;
+	txdesc->dw[2] = 0;
+	txdesc->dw[3] = 0;
+	txdesc->desc1.pktsize = cpu_to_le16(skb->len);
+	/*
+	 * Set OWN bit at final.
+	 * When kernel transmit faster than NIC.
+	 * And NIC trying to send this descriptor before we tell
+	 * it to start sending this TX queue.
+	 * Other fields are already filled correctly.
+	 */
+	wmb();
+	flags = TXFLAG_OWN | TXFLAG_INT;
+	/*
+	 * Set checksum flags while not tso
+	 */
+	if (jme_tx_tso(skb, &txdesc->desc1.mss, &flags))
+		jme_tx_csum(jme, skb, &flags);
+	jme_tx_vlan(skb, &txdesc->desc1.vlan, &flags);
+	txdesc->desc1.flags = flags;
+	/*
+	 * Set tx buffer info after telling NIC to send
+	 * For better tx_clean timing
+	 */
+	wmb();
+	txbi->nr_desc = skb_shinfo(skb)->nr_frags + 2;
+	txbi->skb = skb;
+	txbi->len = skb->len;
+	txbi->start_xmit = jiffies;
+	if (!txbi->start_xmit)
+		txbi->start_xmit = (0UL-1);
+
+	return 0;
+}
+
+static void
+jme_stop_queue_if_full(struct jme_adapter *jme)
+{
+	struct jme_ring *txring = jme->txring;
+	struct jme_buffer_info *txbi = txring->bufinf;
+	int idx = atomic_read(&txring->next_to_clean);
+
+	txbi += idx;
+
+	smp_wmb();
+	if (unlikely(atomic_read(&txring->nr_free) < (MAX_SKB_FRAGS+2))) {
+		netif_stop_queue(jme->dev);
+		msg_tx_queued(jme, "TX Queue Paused.\n");
+		smp_wmb();
+		if (atomic_read(&txring->nr_free)
+			>= (jme->tx_wake_threshold)) {
+			netif_wake_queue(jme->dev);
+			msg_tx_queued(jme, "TX Queue Fast Waked.\n");
+		}
+	}
+
+	if (unlikely(txbi->start_xmit &&
+			(jiffies - txbi->start_xmit) >= TX_TIMEOUT &&
+			txbi->skb)) {
+		netif_stop_queue(jme->dev);
+		msg_tx_queued(jme, "TX Queue Stopped %d@%lu.\n", idx, jiffies);
+	}
+}
+
+/*
+ * This function is already protected by netif_tx_lock()
+ */
+
+static int
+jme_start_xmit(struct sk_buff *skb, struct net_device *netdev)
+{
+	struct jme_adapter *jme = netdev_priv(netdev);
+	int idx;
+
+	if (unlikely(jme_expand_header(jme, skb))) {
+		++(NET_STAT(jme).tx_dropped);
+		return NETDEV_TX_OK;
+	}
+
+	idx = jme_alloc_txdesc(jme, skb);
+
+	if (unlikely(idx < 0)) {
+		netif_stop_queue(netdev);
+		msg_tx_err(jme, "BUG! Tx ring full when queue awake!\n");
+
+		return NETDEV_TX_BUSY;
+	}
+
+	jme_map_tx_skb(jme, skb, idx);
+	jme_fill_first_tx_desc(jme, skb, idx);
+
+	jwrite32(jme, JME_TXCS, jme->reg_txcs |
+				TXCS_SELECT_QUEUE0 |
+				TXCS_QUEUE0S |
+				TXCS_ENABLE);
+	netdev->trans_start = jiffies;
+
+	tx_dbg(jme, "xmit: %d+%d@%lu\n", idx,
+			skb_shinfo(skb)->nr_frags + 2,
+			jiffies);
+	jme_stop_queue_if_full(jme);
+
+	return NETDEV_TX_OK;
+}
+
+static int
+jme_set_macaddr(struct net_device *netdev, void *p)
+{
+	struct jme_adapter *jme = netdev_priv(netdev);
+	struct sockaddr *addr = p;
+	u32 val;
+
+	if (netif_running(netdev))
+		return -EBUSY;
+
+	spin_lock_bh(&jme->macaddr_lock);
+	memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
+
+	val = (addr->sa_data[3] & 0xff) << 24 |
+	      (addr->sa_data[2] & 0xff) << 16 |
+	      (addr->sa_data[1] & 0xff) <<  8 |
+	      (addr->sa_data[0] & 0xff);
+	jwrite32(jme, JME_RXUMA_LO, val);
+	val = (addr->sa_data[5] & 0xff) << 8 |
+	      (addr->sa_data[4] & 0xff);
+	jwrite32(jme, JME_RXUMA_HI, val);
+	spin_unlock_bh(&jme->macaddr_lock);
+
+	return 0;
+}
+
+static void
+jme_set_multi(struct net_device *netdev)
+{
+	struct jme_adapter *jme = netdev_priv(netdev);
+	u32 mc_hash[2] = {};
+	int i;
+
+	spin_lock_bh(&jme->rxmcs_lock);
+
+	jme->reg_rxmcs |= RXMCS_BRDFRAME | RXMCS_UNIFRAME;
+
+	if (netdev->flags & IFF_PROMISC) {
+		jme->reg_rxmcs |= RXMCS_ALLFRAME;
+	} else if (netdev->flags & IFF_ALLMULTI) {
+		jme->reg_rxmcs |= RXMCS_ALLMULFRAME;
+	} else if (netdev->flags & IFF_MULTICAST) {
+		struct dev_mc_list *mclist;
+		int bit_nr;
+
+		jme->reg_rxmcs |= RXMCS_MULFRAME | RXMCS_MULFILTERED;
+		for (i = 0, mclist = netdev->mc_list;
+			mclist && i < netdev->mc_count;
+			++i, mclist = mclist->next) {
+
+			bit_nr = ether_crc(ETH_ALEN, mclist->dmi_addr) & 0x3F;
+			mc_hash[bit_nr >> 5] |= 1 << (bit_nr & 0x1F);
+		}
+
+		jwrite32(jme, JME_RXMCHT_LO, mc_hash[0]);
+		jwrite32(jme, JME_RXMCHT_HI, mc_hash[1]);
+	}
+
+	wmb();
+	jwrite32(jme, JME_RXMCS, jme->reg_rxmcs);
+
+	spin_unlock_bh(&jme->rxmcs_lock);
+}
+
+static int
+jme_change_mtu(struct net_device *netdev, int new_mtu)
+{
+	struct jme_adapter *jme = netdev_priv(netdev);
+
+	if (new_mtu == jme->old_mtu)
+		return 0;
+
+	if (((new_mtu + ETH_HLEN) > MAX_ETHERNET_JUMBO_PACKET_SIZE) ||
+		((new_mtu) < IPV6_MIN_MTU))
+		return -EINVAL;
+
+	if (new_mtu > 4000) {
+		jme->reg_rxcs &= ~RXCS_FIFOTHNP;
+		jme->reg_rxcs |= RXCS_FIFOTHNP_64QW;
+		jme_restart_rx_engine(jme);
+	} else {
+		jme->reg_rxcs &= ~RXCS_FIFOTHNP;
+		jme->reg_rxcs |= RXCS_FIFOTHNP_128QW;
+		jme_restart_rx_engine(jme);
+	}
+
+	if (new_mtu > 1900) {
+		netdev->features &= ~(NETIF_F_HW_CSUM |
+				NETIF_F_TSO |
+				NETIF_F_TSO6);
+	} else {
+		if (test_bit(JME_FLAG_TXCSUM, &jme->flags))
+			netdev->features |= NETIF_F_HW_CSUM;
+		if (test_bit(JME_FLAG_TSO, &jme->flags))
+			netdev->features |= NETIF_F_TSO | NETIF_F_TSO6;
+	}
+
+	netdev->mtu = new_mtu;
+	jme_reset_link(jme);
+
+	return 0;
+}
+
+static void
+jme_tx_timeout(struct net_device *netdev)
+{
+	struct jme_adapter *jme = netdev_priv(netdev);
+
+	jme->phylink = 0;
+	jme_reset_phy_processor(jme);
+	if (test_bit(JME_FLAG_SSET, &jme->flags))
+		jme_set_settings(netdev, &jme->old_ecmd);
+
+	/*
+	 * Force to Reset the link again
+	 */
+	jme_reset_link(jme);
+}
+
+static void
+jme_vlan_rx_register(struct net_device *netdev, struct vlan_group *grp)
+{
+	struct jme_adapter *jme = netdev_priv(netdev);
+
+	jme->vlgrp = grp;
+}
+
+static void
+jme_get_drvinfo(struct net_device *netdev,
+		     struct ethtool_drvinfo *info)
+{
+	struct jme_adapter *jme = netdev_priv(netdev);
+
+	strcpy(info->driver, DRV_NAME);
+	strcpy(info->version, DRV_VERSION);
+	strcpy(info->bus_info, pci_name(jme->pdev));
+}
+
+static int
+jme_get_regs_len(struct net_device *netdev)
+{
+	return JME_REG_LEN;
+}
+
+static void
+mmapio_memcpy(struct jme_adapter *jme, u32 *p, u32 reg, int len)
+{
+	int i;
+
+	for (i = 0 ; i < len ; i += 4)
+		p[i >> 2] = jread32(jme, reg + i);
+}
+
+static void
+mdio_memcpy(struct jme_adapter *jme, u32 *p, int reg_nr)
+{
+	int i;
+	u16 *p16 = (u16 *)p;
+
+	for (i = 0 ; i < reg_nr ; ++i)
+		p16[i] = jme_mdio_read(jme->dev, jme->mii_if.phy_id, i);
+}
+
+static void
+jme_get_regs(struct net_device *netdev, struct ethtool_regs *regs, void *p)
+{
+	struct jme_adapter *jme = netdev_priv(netdev);
+	u32 *p32 = (u32 *)p;
+
+	memset(p, 0xFF, JME_REG_LEN);
+
+	regs->version = 1;
+	mmapio_memcpy(jme, p32, JME_MAC, JME_MAC_LEN);
+
+	p32 += 0x100 >> 2;
+	mmapio_memcpy(jme, p32, JME_PHY, JME_PHY_LEN);
+
+	p32 += 0x100 >> 2;
+	mmapio_memcpy(jme, p32, JME_MISC, JME_MISC_LEN);
+
+	p32 += 0x100 >> 2;
+	mmapio_memcpy(jme, p32, JME_RSS, JME_RSS_LEN);
+
+	p32 += 0x100 >> 2;
+	mdio_memcpy(jme, p32, JME_PHY_REG_NR);
+}
+
+static int
+jme_get_coalesce(struct net_device *netdev, struct ethtool_coalesce *ecmd)
+{
+	struct jme_adapter *jme = netdev_priv(netdev);
+
+	ecmd->tx_coalesce_usecs = PCC_TX_TO;
+	ecmd->tx_max_coalesced_frames = PCC_TX_CNT;
+
+	if (test_bit(JME_FLAG_POLL, &jme->flags)) {
+		ecmd->use_adaptive_rx_coalesce = false;
+		ecmd->rx_coalesce_usecs = 0;
+		ecmd->rx_max_coalesced_frames = 0;
+		return 0;
+	}
+
+	ecmd->use_adaptive_rx_coalesce = true;
+
+	switch (jme->dpi.cur) {
+	case PCC_P1:
+		ecmd->rx_coalesce_usecs = PCC_P1_TO;
+		ecmd->rx_max_coalesced_frames = PCC_P1_CNT;
+		break;
+	case PCC_P2:
+		ecmd->rx_coalesce_usecs = PCC_P2_TO;
+		ecmd->rx_max_coalesced_frames = PCC_P2_CNT;
+		break;
+	case PCC_P3:
+		ecmd->rx_coalesce_usecs = PCC_P3_TO;
+		ecmd->rx_max_coalesced_frames = PCC_P3_CNT;
+		break;
+	default:
+		break;
+	}
+
+	return 0;
+}
+
+static int
+jme_set_coalesce(struct net_device *netdev, struct ethtool_coalesce *ecmd)
+{
+	struct jme_adapter *jme = netdev_priv(netdev);
+	struct dynpcc_info *dpi = &(jme->dpi);
+
+	if (netif_running(netdev))
+		return -EBUSY;
+
+	if (ecmd->use_adaptive_rx_coalesce
+	&& test_bit(JME_FLAG_POLL, &jme->flags)) {
+		clear_bit(JME_FLAG_POLL, &jme->flags);
+		jme->jme_rx = netif_rx;
+		jme->jme_vlan_rx = vlan_hwaccel_rx;
+		dpi->cur		= PCC_P1;
+		dpi->attempt		= PCC_P1;
+		dpi->cnt		= 0;
+		jme_set_rx_pcc(jme, PCC_P1);
+		jme_interrupt_mode(jme);
+	} else if (!(ecmd->use_adaptive_rx_coalesce)
+	&& !(test_bit(JME_FLAG_POLL, &jme->flags))) {
+		set_bit(JME_FLAG_POLL, &jme->flags);
+		jme->jme_rx = netif_receive_skb;
+		jme->jme_vlan_rx = vlan_hwaccel_receive_skb;
+		jme_interrupt_mode(jme);
+	}
+
+	return 0;
+}
+
+static void
+jme_get_pauseparam(struct net_device *netdev,
+			struct ethtool_pauseparam *ecmd)
+{
+	struct jme_adapter *jme = netdev_priv(netdev);
+	u32 val;
+
+	ecmd->tx_pause = (jme->reg_txpfc & TXPFC_PF_EN) != 0;
+	ecmd->rx_pause = (jme->reg_rxmcs & RXMCS_FLOWCTRL) != 0;
+
+	spin_lock_bh(&jme->phy_lock);
+	val = jme_mdio_read(jme->dev, jme->mii_if.phy_id, MII_ADVERTISE);
+	spin_unlock_bh(&jme->phy_lock);
+
+	ecmd->autoneg =
+		(val & (ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM)) != 0;
+}
+
+static int
+jme_set_pauseparam(struct net_device *netdev,
+			struct ethtool_pauseparam *ecmd)
+{
+	struct jme_adapter *jme = netdev_priv(netdev);
+	u32 val;
+
+	if (((jme->reg_txpfc & TXPFC_PF_EN) != 0) ^
+		(ecmd->tx_pause != 0)) {
+
+		if (ecmd->tx_pause)
+			jme->reg_txpfc |= TXPFC_PF_EN;
+		else
+			jme->reg_txpfc &= ~TXPFC_PF_EN;
+
+		jwrite32(jme, JME_TXPFC, jme->reg_txpfc);
+	}
+
+	spin_lock_bh(&jme->rxmcs_lock);
+	if (((jme->reg_rxmcs & RXMCS_FLOWCTRL) != 0) ^
+		(ecmd->rx_pause != 0)) {
+
+		if (ecmd->rx_pause)
+			jme->reg_rxmcs |= RXMCS_FLOWCTRL;
+		else
+			jme->reg_rxmcs &= ~RXMCS_FLOWCTRL;
+
+		jwrite32(jme, JME_RXMCS, jme->reg_rxmcs);
+	}
+	spin_unlock_bh(&jme->rxmcs_lock);
+
+	spin_lock_bh(&jme->phy_lock);
+	val = jme_mdio_read(jme->dev, jme->mii_if.phy_id, MII_ADVERTISE);
+	if (((val & (ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM)) != 0) ^
+		(ecmd->autoneg != 0)) {
+
+		if (ecmd->autoneg)
+			val |= (ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM);
+		else
+			val &= ~(ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM);
+
+		jme_mdio_write(jme->dev, jme->mii_if.phy_id,
+				MII_ADVERTISE, val);
+	}
+	spin_unlock_bh(&jme->phy_lock);
+
+	return 0;
+}
+
+static void
+jme_get_wol(struct net_device *netdev,
+		struct ethtool_wolinfo *wol)
+{
+	struct jme_adapter *jme = netdev_priv(netdev);
+
+	wol->supported = WAKE_MAGIC | WAKE_PHY;
+
+	wol->wolopts = 0;
+
+	if (jme->reg_pmcs & (PMCS_LFEN | PMCS_LREN))
+		wol->wolopts |= WAKE_PHY;
+
+	if (jme->reg_pmcs & PMCS_MFEN)
+		wol->wolopts |= WAKE_MAGIC;
+
+}
+
+static int
+jme_set_wol(struct net_device *netdev,
+		struct ethtool_wolinfo *wol)
+{
+	struct jme_adapter *jme = netdev_priv(netdev);
+
+	if (wol->wolopts & (WAKE_MAGICSECURE |
+				WAKE_UCAST |
+				WAKE_MCAST |
+				WAKE_BCAST |
+				WAKE_ARP))
+		return -EOPNOTSUPP;
+
+	jme->reg_pmcs = 0;
+
+	if (wol->wolopts & WAKE_PHY)
+		jme->reg_pmcs |= PMCS_LFEN | PMCS_LREN;
+
+	if (wol->wolopts & WAKE_MAGIC)
+		jme->reg_pmcs |= PMCS_MFEN;
+
+	jwrite32(jme, JME_PMCS, jme->reg_pmcs);
+
+	return 0;
+}
+
+static int
+jme_get_settings(struct net_device *netdev,
+		     struct ethtool_cmd *ecmd)
+{
+	struct jme_adapter *jme = netdev_priv(netdev);
+	int rc;
+
+	spin_lock_bh(&jme->phy_lock);
+	rc = mii_ethtool_gset(&(jme->mii_if), ecmd);
+	spin_unlock_bh(&jme->phy_lock);
+	return rc;
+}
+
+static int
+jme_set_settings(struct net_device *netdev,
+		     struct ethtool_cmd *ecmd)
+{
+	struct jme_adapter *jme = netdev_priv(netdev);
+	int rc, fdc = 0;
+
+	if (ecmd->speed == SPEED_1000 && ecmd->autoneg != AUTONEG_ENABLE)
+		return -EINVAL;
+
+	if (jme->mii_if.force_media &&
+	ecmd->autoneg != AUTONEG_ENABLE &&
+	(jme->mii_if.full_duplex != ecmd->duplex))
+		fdc = 1;
+
+	spin_lock_bh(&jme->phy_lock);
+	rc = mii_ethtool_sset(&(jme->mii_if), ecmd);
+	spin_unlock_bh(&jme->phy_lock);
+
+	if (!rc && fdc)
+		jme_reset_link(jme);
+
+	if (!rc) {
+		set_bit(JME_FLAG_SSET, &jme->flags);
+		jme->old_ecmd = *ecmd;
+	}
+
+	return rc;
+}
+
+static u32
+jme_get_link(struct net_device *netdev)
+{
+	struct jme_adapter *jme = netdev_priv(netdev);
+	return jread32(jme, JME_PHY_LINK) & PHY_LINK_UP;
+}
+
+static u32
+jme_get_msglevel(struct net_device *netdev)
+{
+	struct jme_adapter *jme = netdev_priv(netdev);
+	return jme->msg_enable;
+}
+
+static void
+jme_set_msglevel(struct net_device *netdev, u32 value)
+{
+	struct jme_adapter *jme = netdev_priv(netdev);
+	jme->msg_enable = value;
+}
+
+static u32
+jme_get_rx_csum(struct net_device *netdev)
+{
+	struct jme_adapter *jme = netdev_priv(netdev);
+	return jme->reg_rxmcs & RXMCS_CHECKSUM;
+}
+
+static int
+jme_set_rx_csum(struct net_device *netdev, u32 on)
+{
+	struct jme_adapter *jme = netdev_priv(netdev);
+
+	spin_lock_bh(&jme->rxmcs_lock);
+	if (on)
+		jme->reg_rxmcs |= RXMCS_CHECKSUM;
+	else
+		jme->reg_rxmcs &= ~RXMCS_CHECKSUM;
+	jwrite32(jme, JME_RXMCS, jme->reg_rxmcs);
+	spin_unlock_bh(&jme->rxmcs_lock);
+
+	return 0;
+}
+
+static int
+jme_set_tx_csum(struct net_device *netdev, u32 on)
+{
+	struct jme_adapter *jme = netdev_priv(netdev);
+
+	if (on) {
+		set_bit(JME_FLAG_TXCSUM, &jme->flags);
+		if (netdev->mtu <= 1900)
+			netdev->features |= NETIF_F_HW_CSUM;
+	} else {
+		clear_bit(JME_FLAG_TXCSUM, &jme->flags);
+		netdev->features &= ~NETIF_F_HW_CSUM;
+	}
+
+	return 0;
+}
+
+static int
+jme_set_tso(struct net_device *netdev, u32 on)
+{
+	struct jme_adapter *jme = netdev_priv(netdev);
+
+	if (on) {
+		set_bit(JME_FLAG_TSO, &jme->flags);
+		if (netdev->mtu <= 1900)
+			netdev->features |= NETIF_F_TSO | NETIF_F_TSO6;
+	} else {
+		clear_bit(JME_FLAG_TSO, &jme->flags);
+		netdev->features &= ~(NETIF_F_TSO | NETIF_F_TSO6);
+	}
+
+	return 0;
+}
+
+static int
+jme_nway_reset(struct net_device *netdev)
+{
+	struct jme_adapter *jme = netdev_priv(netdev);
+	jme_restart_an(jme);
+	return 0;
+}
+
+static u8
+jme_smb_read(struct jme_adapter *jme, unsigned int addr)
+{
+	u32 val;
+	int to;
+
+	val = jread32(jme, JME_SMBCSR);
+	to = JME_SMB_BUSY_TIMEOUT;
+	while ((val & SMBCSR_BUSY) && --to) {
+		msleep(1);
+		val = jread32(jme, JME_SMBCSR);
+	}
+	if (!to) {
+		msg_hw(jme, "SMB Bus Busy.\n");
+		return 0xFF;
+	}
+
+	jwrite32(jme, JME_SMBINTF,
+		((addr << SMBINTF_HWADDR_SHIFT) & SMBINTF_HWADDR) |
+		SMBINTF_HWRWN_READ |
+		SMBINTF_HWCMD);
+
+	val = jread32(jme, JME_SMBINTF);
+	to = JME_SMB_BUSY_TIMEOUT;
+	while ((val & SMBINTF_HWCMD) && --to) {
+		msleep(1);
+		val = jread32(jme, JME_SMBINTF);
+	}
+	if (!to) {
+		msg_hw(jme, "SMB Bus Busy.\n");
+		return 0xFF;
+	}
+
+	return (val & SMBINTF_HWDATR) >> SMBINTF_HWDATR_SHIFT;
+}
+
+static void
+jme_smb_write(struct jme_adapter *jme, unsigned int addr, u8 data)
+{
+	u32 val;
+	int to;
+
+	val = jread32(jme, JME_SMBCSR);
+	to = JME_SMB_BUSY_TIMEOUT;
+	while ((val & SMBCSR_BUSY) && --to) {
+		msleep(1);
+		val = jread32(jme, JME_SMBCSR);
+	}
+	if (!to) {
+		msg_hw(jme, "SMB Bus Busy.\n");
+		return;
+	}
+
+	jwrite32(jme, JME_SMBINTF,
+		((data << SMBINTF_HWDATW_SHIFT) & SMBINTF_HWDATW) |
+		((addr << SMBINTF_HWADDR_SHIFT) & SMBINTF_HWADDR) |
+		SMBINTF_HWRWN_WRITE |
+		SMBINTF_HWCMD);
+
+	val = jread32(jme, JME_SMBINTF);
+	to = JME_SMB_BUSY_TIMEOUT;
+	while ((val & SMBINTF_HWCMD) && --to) {
+		msleep(1);
+		val = jread32(jme, JME_SMBINTF);
+	}
+	if (!to) {
+		msg_hw(jme, "SMB Bus Busy.\n");
+		return;
+	}
+
+	mdelay(2);
+}
+
+static int
+jme_get_eeprom_len(struct net_device *netdev)
+{
+	struct jme_adapter *jme = netdev_priv(netdev);
+	u32 val;
+	val = jread32(jme, JME_SMBCSR);
+	return (val & SMBCSR_EEPROMD) ? JME_SMB_LEN : 0;
+}
+
+static int
+jme_get_eeprom(struct net_device *netdev,
+		struct ethtool_eeprom *eeprom, u8 *data)
+{
+	struct jme_adapter *jme = netdev_priv(netdev);
+	int i, offset = eeprom->offset, len = eeprom->len;
+
+	/*
+	 * ethtool will check the boundary for us
+	 */
+	eeprom->magic = JME_EEPROM_MAGIC;
+	for (i = 0 ; i < len ; ++i)
+		data[i] = jme_smb_read(jme, i + offset);
+
+	return 0;
+}
+
+static int
+jme_set_eeprom(struct net_device *netdev,
+		struct ethtool_eeprom *eeprom, u8 *data)
+{
+	struct jme_adapter *jme = netdev_priv(netdev);
+	int i, offset = eeprom->offset, len = eeprom->len;
+
+	if (eeprom->magic != JME_EEPROM_MAGIC)
+		return -EINVAL;
+
+	/*
+	 * ethtool will check the boundary for us
+	 */
+	for (i = 0 ; i < len ; ++i)
+		jme_smb_write(jme, i + offset, data[i]);
+
+	return 0;
+}
+
+static const struct ethtool_ops jme_ethtool_ops = {
+	.get_drvinfo            = jme_get_drvinfo,
+	.get_regs_len		= jme_get_regs_len,
+	.get_regs		= jme_get_regs,
+	.get_coalesce		= jme_get_coalesce,
+	.set_coalesce		= jme_set_coalesce,
+	.get_pauseparam		= jme_get_pauseparam,
+	.set_pauseparam		= jme_set_pauseparam,
+	.get_wol		= jme_get_wol,
+	.set_wol		= jme_set_wol,
+	.get_settings		= jme_get_settings,
+	.set_settings		= jme_set_settings,
+	.get_link		= jme_get_link,
+	.get_msglevel           = jme_get_msglevel,
+	.set_msglevel           = jme_set_msglevel,
+	.get_rx_csum		= jme_get_rx_csum,
+	.set_rx_csum		= jme_set_rx_csum,
+	.set_tx_csum		= jme_set_tx_csum,
+	.set_tso		= jme_set_tso,
+	.set_sg			= ethtool_op_set_sg,
+	.nway_reset             = jme_nway_reset,
+	.get_eeprom_len		= jme_get_eeprom_len,
+	.get_eeprom		= jme_get_eeprom,
+	.set_eeprom		= jme_set_eeprom,
+};
+
+static int
+jme_pci_dma64(struct pci_dev *pdev)
+{
+	if (!pci_set_dma_mask(pdev, DMA_64BIT_MASK))
+		if (!pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK))
+			return 1;
+
+	if (!pci_set_dma_mask(pdev, DMA_40BIT_MASK))
+		if (!pci_set_consistent_dma_mask(pdev, DMA_40BIT_MASK))
+			return 1;
+
+	if (!pci_set_dma_mask(pdev, DMA_32BIT_MASK))
+		if (!pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK))
+			return 0;
+
+	return -1;
+}
+
+static inline void
+jme_phy_init(struct jme_adapter *jme)
+{
+	u16 reg26;
+
+	reg26 = jme_mdio_read(jme->dev, jme->mii_if.phy_id, 26);
+	jme_mdio_write(jme->dev, jme->mii_if.phy_id, 26, reg26 | 0x1000);
+}
+
+static inline void
+jme_check_hw_ver(struct jme_adapter *jme)
+{
+	u32 chipmode;
+
+	chipmode = jread32(jme, JME_CHIPMODE);
+
+	jme->fpgaver = (chipmode & CM_FPGAVER_MASK) >> CM_FPGAVER_SHIFT;
+	jme->chiprev = (chipmode & CM_CHIPREV_MASK) >> CM_CHIPREV_SHIFT;
+}
+
+static int __devinit
+jme_init_one(struct pci_dev *pdev,
+	     const struct pci_device_id *ent)
+{
+	int rc = 0, using_dac, i;
+	struct net_device *netdev;
+	struct jme_adapter *jme;
+	u16 bmcr, bmsr;
+	u32 apmc;
+
+	/*
+	 * set up PCI device basics
+	 */
+	rc = pci_enable_device(pdev);
+	if (rc) {
+		jeprintk(pdev, "Cannot enable PCI device.\n");
+		goto err_out;
+	}
+
+	using_dac = jme_pci_dma64(pdev);
+	if (using_dac < 0) {
+		jeprintk(pdev, "Cannot set PCI DMA Mask.\n");
+		rc = -EIO;
+		goto err_out_disable_pdev;
+	}
+
+	if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
+		jeprintk(pdev, "No PCI resource region found.\n");
+		rc = -ENOMEM;
+		goto err_out_disable_pdev;
+	}
+
+	rc = pci_request_regions(pdev, DRV_NAME);
+	if (rc) {
+		jeprintk(pdev, "Cannot obtain PCI resource region.\n");
+		goto err_out_disable_pdev;
+	}
+
+	pci_set_master(pdev);
+
+	/*
+	 * alloc and init net device
+	 */
+	netdev = alloc_etherdev(sizeof(*jme));
+	if (!netdev) {
+		jeprintk(pdev, "Cannot allocate netdev structure.\n");
+		rc = -ENOMEM;
+		goto err_out_release_regions;
+	}
+	netdev->open			= jme_open;
+	netdev->stop			= jme_close;
+	netdev->hard_start_xmit		= jme_start_xmit;
+	netdev->set_mac_address		= jme_set_macaddr;
+	netdev->set_multicast_list	= jme_set_multi;
+	netdev->change_mtu		= jme_change_mtu;
+	netdev->ethtool_ops		= &jme_ethtool_ops;
+	netdev->tx_timeout		= jme_tx_timeout;
+	netdev->watchdog_timeo		= TX_TIMEOUT;
+	netdev->vlan_rx_register	= jme_vlan_rx_register;
+	NETDEV_GET_STATS(netdev, &jme_get_stats);
+	netdev->features		=	NETIF_F_HW_CSUM |
+						NETIF_F_SG |
+						NETIF_F_TSO |
+						NETIF_F_TSO6 |
+						NETIF_F_HW_VLAN_TX |
+						NETIF_F_HW_VLAN_RX;
+	if (using_dac)
+		netdev->features	|=	NETIF_F_HIGHDMA;
+
+	SET_NETDEV_DEV(netdev, &pdev->dev);
+	pci_set_drvdata(pdev, netdev);
+
+	/*
+	 * init adapter info
+	 */
+	jme = netdev_priv(netdev);
+	jme->pdev = pdev;
+	jme->dev = netdev;
+	jme->jme_rx = netif_rx;
+	jme->jme_vlan_rx = vlan_hwaccel_rx;
+	jme->old_mtu = netdev->mtu = 1500;
+	jme->phylink = 0;
+	jme->tx_ring_size = 1 << 10;
+	jme->tx_ring_mask = jme->tx_ring_size - 1;
+	jme->tx_wake_threshold = 1 << 9;
+	jme->rx_ring_size = 1 << 9;
+	jme->rx_ring_mask = jme->rx_ring_size - 1;
+	jme->msg_enable = JME_DEF_MSG_ENABLE;
+	jme->regs = ioremap(pci_resource_start(pdev, 0),
+			     pci_resource_len(pdev, 0));
+	if (!(jme->regs)) {
+		jeprintk(pdev, "Mapping PCI resource region error.\n");
+		rc = -ENOMEM;
+		goto err_out_free_netdev;
+	}
+	jme->shadow_regs = pci_alloc_consistent(pdev,
+						sizeof(u32) * SHADOW_REG_NR,
+						&(jme->shadow_dma));
+	if (!(jme->shadow_regs)) {
+		jeprintk(pdev, "Allocating shadow register mapping error.\n");
+		rc = -ENOMEM;
+		goto err_out_unmap;
+	}
+
+	if (no_pseudohp) {
+		apmc = jread32(jme, JME_APMC) & ~JME_APMC_PSEUDO_HP_EN;
+		jwrite32(jme, JME_APMC, apmc);
+	} else if (force_pseudohp) {
+		apmc = jread32(jme, JME_APMC) | JME_APMC_PSEUDO_HP_EN;
+		jwrite32(jme, JME_APMC, apmc);
+	}
+
+	NETIF_NAPI_SET(netdev, &jme->napi, jme_poll, jme->rx_ring_size >> 2)
+
+	spin_lock_init(&jme->phy_lock);
+	spin_lock_init(&jme->macaddr_lock);
+	spin_lock_init(&jme->rxmcs_lock);
+
+	atomic_set(&jme->link_changing, 1);
+	atomic_set(&jme->rx_cleaning, 1);
+	atomic_set(&jme->tx_cleaning, 1);
+	atomic_set(&jme->rx_empty, 1);
+
+	tasklet_init(&jme->pcc_task,
+		     &jme_pcc_tasklet,
+		     (unsigned long) jme);
+	tasklet_init(&jme->linkch_task,
+		     &jme_link_change_tasklet,
+		     (unsigned long) jme);
+	tasklet_init(&jme->txclean_task,
+		     &jme_tx_clean_tasklet,
+		     (unsigned long) jme);
+	tasklet_init(&jme->rxclean_task,
+		     &jme_rx_clean_tasklet,
+		     (unsigned long) jme);
+	tasklet_init(&jme->rxempty_task,
+		     &jme_rx_empty_tasklet,
+		     (unsigned long) jme);
+	tasklet_disable_nosync(&jme->txclean_task);
+	tasklet_disable_nosync(&jme->rxclean_task);
+	tasklet_disable_nosync(&jme->rxempty_task);
+	jme->dpi.cur = PCC_P1;
+
+	jme->reg_ghc = 0;
+	jme->reg_rxcs = RXCS_DEFAULT;
+	jme->reg_rxmcs = RXMCS_DEFAULT;
+	jme->reg_txpfc = 0;
+	jme->reg_pmcs = PMCS_MFEN;
+	set_bit(JME_FLAG_TXCSUM, &jme->flags);
+	set_bit(JME_FLAG_TSO, &jme->flags);
+
+	/*
+	 * Get Max Read Req Size from PCI Config Space
+	 */
+	pci_read_config_byte(pdev, PCI_DCSR_MRRS, &jme->mrrs);
+	jme->mrrs &= PCI_DCSR_MRRS_MASK;
+	switch (jme->mrrs) {
+	case MRRS_128B:
+		jme->reg_txcs = TXCS_DEFAULT | TXCS_DMASIZE_128B;
+		break;
+	case MRRS_256B:
+		jme->reg_txcs = TXCS_DEFAULT | TXCS_DMASIZE_256B;
+		break;
+	default:
+		jme->reg_txcs = TXCS_DEFAULT | TXCS_DMASIZE_512B;
+		break;
+	};
+
+	/*
+	 * Must check before reset_mac_processor
+	 */
+	jme_check_hw_ver(jme);
+	jme->mii_if.dev = netdev;
+	if (jme->fpgaver) {
+		jme->mii_if.phy_id = 0;
+		for (i = 1 ; i < 32 ; ++i) {
+			bmcr = jme_mdio_read(netdev, i, MII_BMCR);
+			bmsr = jme_mdio_read(netdev, i, MII_BMSR);
+			if (bmcr != 0xFFFFU && (bmcr != 0 || bmsr != 0)) {
+				jme->mii_if.phy_id = i;
+				break;
+			}
+		}
+
+		if (!jme->mii_if.phy_id) {
+			rc = -EIO;
+			jeprintk(pdev, "Can not find phy_id.\n");
+			 goto err_out_free_shadow;
+		}
+
+		jme->reg_ghc |= GHC_LINK_POLL;
+	} else {
+		jme->mii_if.phy_id = 1;
+	}
+	if (pdev->device == PCI_DEVICE_ID_JMICRON_JMC250)
+		jme->mii_if.supports_gmii = true;
+	else
+		jme->mii_if.supports_gmii = false;
+	jme->mii_if.mdio_read = jme_mdio_read;
+	jme->mii_if.mdio_write = jme_mdio_write;
+
+	jme_clear_pm(jme);
+	jme_set_phyfifoa(jme);
+	pci_read_config_byte(pdev, PCI_REVISION_ID, &jme->rev);
+	if (!jme->fpgaver)
+		jme_phy_init(jme);
+	jme_phy_off(jme);
+
+	/*
+	 * Reset MAC processor and reload EEPROM for MAC Address
+	 */
+	jme_reset_mac_processor(jme);
+	rc = jme_reload_eeprom(jme);
+	if (rc) {
+		jeprintk(pdev,
+			"Reload eeprom for reading MAC Address error.\n");
+		goto err_out_free_shadow;
+	}
+	jme_load_macaddr(netdev);
+
+	/*
+	 * Tell stack that we are not ready to work until open()
+	 */
+	netif_carrier_off(netdev);
+	netif_stop_queue(netdev);
+
+	/*
+	 * Register netdev
+	 */
+	rc = register_netdev(netdev);
+	if (rc) {
+		jeprintk(pdev, "Cannot register net device.\n");
+		goto err_out_free_shadow;
+	}
+
+	msg_probe(jme,
+		"JMC250 gigabit%s ver:%x rev:%x "
+		"macaddr:%02x:%02x:%02x:%02x:%02x:%02x\n",
+		(jme->fpgaver != 0) ? " (FPGA)" : "",
+		(jme->fpgaver != 0) ? jme->fpgaver : jme->chiprev,
+		jme->rev,
+		netdev->dev_addr[0],
+		netdev->dev_addr[1],
+		netdev->dev_addr[2],
+		netdev->dev_addr[3],
+		netdev->dev_addr[4],
+		netdev->dev_addr[5]);
+
+	return 0;
+
+err_out_free_shadow:
+	pci_free_consistent(pdev,
+			    sizeof(u32) * SHADOW_REG_NR,
+			    jme->shadow_regs,
+			    jme->shadow_dma);
+err_out_unmap:
+	iounmap(jme->regs);
+err_out_free_netdev:
+	pci_set_drvdata(pdev, NULL);
+	free_netdev(netdev);
+err_out_release_regions:
+	pci_release_regions(pdev);
+err_out_disable_pdev:
+	pci_disable_device(pdev);
+err_out:
+	return rc;
+}
+
+static void __devexit
+jme_remove_one(struct pci_dev *pdev)
+{
+	struct net_device *netdev = pci_get_drvdata(pdev);
+	struct jme_adapter *jme = netdev_priv(netdev);
+
+	unregister_netdev(netdev);
+	pci_free_consistent(pdev,
+			    sizeof(u32) * SHADOW_REG_NR,
+			    jme->shadow_regs,
+			    jme->shadow_dma);
+	iounmap(jme->regs);
+	pci_set_drvdata(pdev, NULL);
+	free_netdev(netdev);
+	pci_release_regions(pdev);
+	pci_disable_device(pdev);
+
+}
+
+static int
+jme_suspend(struct pci_dev *pdev, pm_message_t state)
+{
+	struct net_device *netdev = pci_get_drvdata(pdev);
+	struct jme_adapter *jme = netdev_priv(netdev);
+
+	atomic_dec(&jme->link_changing);
+
+	netif_device_detach(netdev);
+	netif_stop_queue(netdev);
+	jme_stop_irq(jme);
+
+	tasklet_disable(&jme->txclean_task);
+	tasklet_disable(&jme->rxclean_task);
+	tasklet_disable(&jme->rxempty_task);
+
+	jme_disable_shadow(jme);
+
+	if (netif_carrier_ok(netdev)) {
+		if (test_bit(JME_FLAG_POLL, &jme->flags))
+			jme_polling_mode(jme);
+
+		jme_stop_pcc_timer(jme);
+		jme_reset_ghc_speed(jme);
+		jme_disable_rx_engine(jme);
+		jme_disable_tx_engine(jme);
+		jme_reset_mac_processor(jme);
+		jme_free_rx_resources(jme);
+		jme_free_tx_resources(jme);
+		netif_carrier_off(netdev);
+		jme->phylink = 0;
+	}
+
+	tasklet_enable(&jme->txclean_task);
+	tasklet_hi_enable(&jme->rxclean_task);
+	tasklet_hi_enable(&jme->rxempty_task);
+
+	pci_save_state(pdev);
+	if (jme->reg_pmcs) {
+		jme_set_100m_half(jme);
+
+		if (jme->reg_pmcs & (PMCS_LFEN | PMCS_LREN))
+			jme_wait_link(jme);
+
+		jwrite32(jme, JME_PMCS, jme->reg_pmcs);
+
+		pci_enable_wake(pdev, PCI_D3cold, true);
+	} else {
+		jme_phy_off(jme);
+	}
+	pci_set_power_state(pdev, PCI_D3cold);
+
+	return 0;
+}
+
+static int
+jme_resume(struct pci_dev *pdev)
+{
+	struct net_device *netdev = pci_get_drvdata(pdev);
+	struct jme_adapter *jme = netdev_priv(netdev);
+
+	jme_clear_pm(jme);
+	pci_restore_state(pdev);
+
+	if (test_bit(JME_FLAG_SSET, &jme->flags))
+		jme_set_settings(netdev, &jme->old_ecmd);
+	else
+		jme_reset_phy_processor(jme);
+
+	jme_enable_shadow(jme);
+	jme_start_irq(jme);
+	netif_device_attach(netdev);
+
+	atomic_inc(&jme->link_changing);
+
+	jme_reset_link(jme);
+
+	return 0;
+}
+
+static struct pci_device_id jme_pci_tbl[] = {
+	{ PCI_VDEVICE(JMICRON, PCI_DEVICE_ID_JMICRON_JMC250) },
+	{ PCI_VDEVICE(JMICRON, PCI_DEVICE_ID_JMICRON_JMC260) },
+	{ }
+};
+
+static struct pci_driver jme_driver = {
+	.name           = DRV_NAME,
+	.id_table       = jme_pci_tbl,
+	.probe          = jme_init_one,
+	.remove         = __devexit_p(jme_remove_one),
+#ifdef CONFIG_PM
+	.suspend        = jme_suspend,
+	.resume         = jme_resume,
+#endif /* CONFIG_PM */
+};
+
+static int __init
+jme_init_module(void)
+{
+	printk(KERN_INFO PFX "JMicron JMC250 gigabit ethernet "
+	       "driver version %s\n", DRV_VERSION);
+	return pci_register_driver(&jme_driver);
+}
+
+static void __exit
+jme_cleanup_module(void)
+{
+	pci_unregister_driver(&jme_driver);
+}
+
+module_init(jme_init_module);
+module_exit(jme_cleanup_module);
+
+MODULE_AUTHOR("Guo-Fu Tseng <cooldavid@cooldavid.org>");
+MODULE_DESCRIPTION("JMicron JMC2x0 PCI Express Ethernet driver");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(DRV_VERSION);
+MODULE_DEVICE_TABLE(pci, jme_pci_tbl);
+
diff --git a/drivers/net/jme.h b/drivers/net/jme.h
new file mode 100644
index 0000000..b296884
--- /dev/null
+++ b/drivers/net/jme.h
@@ -0,0 +1,1199 @@
+/*
+ * JMicron JMC2x0 series PCIe Ethernet Linux Device Driver
+ *
+ * Copyright 2008 JMicron Technology Corporation
+ * http://www.jmicron.com/
+ *
+ * Author: Guo-Fu Tseng <cooldavid@cooldavid.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#ifndef __JME_H_INCLUDED__
+#define __JME_H_INCLUDEE__
+
+#define DRV_NAME	"jme"
+#define DRV_VERSION	"1.0.2"
+#define PFX		DRV_NAME ": "
+
+#define PCI_DEVICE_ID_JMICRON_JMC250	0x0250
+#define PCI_DEVICE_ID_JMICRON_JMC260	0x0260
+
+/*
+ * Message related definitions
+ */
+#define JME_DEF_MSG_ENABLE \
+	(NETIF_MSG_PROBE | \
+	NETIF_MSG_LINK | \
+	NETIF_MSG_RX_ERR | \
+	NETIF_MSG_TX_ERR | \
+	NETIF_MSG_HW)
+
+#define jeprintk(pdev, fmt, args...) \
+	printk(KERN_ERR PFX fmt, ## args)
+
+#ifdef TX_DEBUG
+#define tx_dbg(priv, fmt, args...) \
+	printk(KERN_DEBUG "%s: " fmt, (priv)->dev->name, ## args)
+#else
+#define tx_dbg(priv, fmt, args...)
+#endif
+
+#define jme_msg(msglvl, type, priv, fmt, args...) \
+	if (netif_msg_##type(priv)) \
+		printk(msglvl "%s: " fmt, (priv)->dev->name, ## args)
+
+#define msg_probe(priv, fmt, args...) \
+	jme_msg(KERN_INFO, probe, priv, fmt, ## args)
+
+#define msg_link(priv, fmt, args...) \
+	jme_msg(KERN_INFO, link, priv, fmt, ## args)
+
+#define msg_intr(priv, fmt, args...) \
+	jme_msg(KERN_INFO, intr, priv, fmt, ## args)
+
+#define msg_rx_err(priv, fmt, args...) \
+	jme_msg(KERN_ERR, rx_err, priv, fmt, ## args)
+
+#define msg_rx_status(priv, fmt, args...) \
+	jme_msg(KERN_INFO, rx_status, priv, fmt, ## args)
+
+#define msg_tx_err(priv, fmt, args...) \
+	jme_msg(KERN_ERR, tx_err, priv, fmt, ## args)
+
+#define msg_tx_done(priv, fmt, args...) \
+	jme_msg(KERN_INFO, tx_done, priv, fmt, ## args)
+
+#define msg_tx_queued(priv, fmt, args...) \
+	jme_msg(KERN_INFO, tx_queued, priv, fmt, ## args)
+
+#define msg_hw(priv, fmt, args...) \
+	jme_msg(KERN_ERR, hw, priv, fmt, ## args)
+
+/*
+ * Extra PCI Configuration space interface
+ */
+#define PCI_DCSR_MRRS		0x59
+#define PCI_DCSR_MRRS_MASK	0x70
+
+enum pci_dcsr_mrrs_vals {
+	MRRS_128B	= 0x00,
+	MRRS_256B	= 0x10,
+	MRRS_512B	= 0x20,
+	MRRS_1024B	= 0x30,
+	MRRS_2048B	= 0x40,
+	MRRS_4096B	= 0x50,
+};
+
+#define PCI_SPI			0xB0
+
+enum pci_spi_bits {
+	SPI_EN		= 0x10,
+	SPI_MISO	= 0x08,
+	SPI_MOSI	= 0x04,
+	SPI_SCLK	= 0x02,
+	SPI_CS		= 0x01,
+};
+
+struct jme_spi_op {
+	void __user *uwbuf;
+	void __user *urbuf;
+	__u8	wn;	/* Number of write actions */
+	__u8	rn;	/* Number of read actions */
+	__u8	bitn;	/* Number of bits per action */
+	__u8	spd;	/* The maxim acceptable speed of controller, in MHz.*/
+	__u8	mode;	/* CPOL, CPHA, and Duplex mode of SPI */
+
+	/* Internal use only */
+	u8	*kwbuf;
+	u8	*krbuf;
+	u8	sr;
+	u16	halfclk; /* Half of clock cycle calculated from spd, in ns */
+};
+
+enum jme_spi_op_bits {
+	SPI_MODE_CPHA	= 0x01,
+	SPI_MODE_CPOL	= 0x02,
+	SPI_MODE_DUP	= 0x80,
+};
+
+#define HALF_US 500	/* 500 ns */
+#define JMESPIIOCTL	SIOCDEVPRIVATE
+
+/*
+ * Dynamic(adaptive)/Static PCC values
+ */
+enum dynamic_pcc_values {
+	PCC_OFF		= 0,
+	PCC_P1		= 1,
+	PCC_P2		= 2,
+	PCC_P3		= 3,
+
+	PCC_OFF_TO	= 0,
+	PCC_P1_TO	= 1,
+	PCC_P2_TO	= 64,
+	PCC_P3_TO	= 128,
+
+	PCC_OFF_CNT	= 0,
+	PCC_P1_CNT	= 1,
+	PCC_P2_CNT	= 16,
+	PCC_P3_CNT	= 32,
+};
+struct dynpcc_info {
+	unsigned long	last_bytes;
+	unsigned long	last_pkts;
+	unsigned long	intr_cnt;
+	unsigned char	cur;
+	unsigned char	attempt;
+	unsigned char	cnt;
+};
+#define PCC_INTERVAL_US	100000
+#define PCC_INTERVAL (HZ / (1000000 / PCC_INTERVAL_US))
+#define PCC_P3_THRESHOLD (2 * 1024 * 1024)
+#define PCC_P2_THRESHOLD 800
+#define PCC_INTR_THRESHOLD 800
+#define PCC_TX_TO 1000
+#define PCC_TX_CNT 8
+
+/*
+ * TX/RX Descriptors
+ *
+ * TX/RX Ring DESC Count Must be multiple of 16 and <= 1024
+ */
+#define RING_DESC_ALIGN		16	/* Descriptor alignment */
+#define TX_DESC_SIZE		16
+#define TX_RING_NR		8
+#define TX_RING_ALLOC_SIZE(s)	((s * TX_DESC_SIZE) + RING_DESC_ALIGN)
+
+struct txdesc {
+	union {
+		__u8	all[16];
+		__le32	dw[4];
+		struct {
+			/* DW0 */
+			__le16	vlan;
+			__u8	rsv1;
+			__u8	flags;
+
+			/* DW1 */
+			__le16	datalen;
+			__le16	mss;
+
+			/* DW2 */
+			__le16	pktsize;
+			__le16	rsv2;
+
+			/* DW3 */
+			__le32	bufaddr;
+		} desc1;
+		struct {
+			/* DW0 */
+			__le16	rsv1;
+			__u8	rsv2;
+			__u8	flags;
+
+			/* DW1 */
+			__le16	datalen;
+			__le16	rsv3;
+
+			/* DW2 */
+			__le32	bufaddrh;
+
+			/* DW3 */
+			__le32	bufaddrl;
+		} desc2;
+		struct {
+			/* DW0 */
+			__u8	ehdrsz;
+			__u8	rsv1;
+			__u8	rsv2;
+			__u8	flags;
+
+			/* DW1 */
+			__le16	trycnt;
+			__le16	segcnt;
+
+			/* DW2 */
+			__le16	pktsz;
+			__le16	rsv3;
+
+			/* DW3 */
+			__le32	bufaddrl;
+		} descwb;
+	};
+};
+
+enum jme_txdesc_flags_bits {
+	TXFLAG_OWN	= 0x80,
+	TXFLAG_INT	= 0x40,
+	TXFLAG_64BIT	= 0x20,
+	TXFLAG_TCPCS	= 0x10,
+	TXFLAG_UDPCS	= 0x08,
+	TXFLAG_IPCS	= 0x04,
+	TXFLAG_LSEN	= 0x02,
+	TXFLAG_TAGON	= 0x01,
+};
+
+#define TXDESC_MSS_SHIFT	2
+enum jme_rxdescwb_flags_bits {
+	TXWBFLAG_OWN	= 0x80,
+	TXWBFLAG_INT	= 0x40,
+	TXWBFLAG_TMOUT	= 0x20,
+	TXWBFLAG_TRYOUT	= 0x10,
+	TXWBFLAG_COL	= 0x08,
+
+	TXWBFLAG_ALLERR	= TXWBFLAG_TMOUT |
+			  TXWBFLAG_TRYOUT |
+			  TXWBFLAG_COL,
+};
+
+#define RX_DESC_SIZE		16
+#define RX_RING_NR		4
+#define RX_RING_ALLOC_SIZE(s)	((s * RX_DESC_SIZE) + RING_DESC_ALIGN)
+#define RX_BUF_DMA_ALIGN	8
+#define RX_PREPAD_SIZE		10
+#define ETH_CRC_LEN		2
+#define RX_VLANHDR_LEN		2
+#define RX_EXTRA_LEN		(RX_PREPAD_SIZE + \
+				ETH_HLEN + \
+				ETH_CRC_LEN + \
+				RX_VLANHDR_LEN + \
+				RX_BUF_DMA_ALIGN)
+
+struct rxdesc {
+	union {
+		__u8	all[16];
+		__le32	dw[4];
+		struct {
+			/* DW0 */
+			__le16	rsv2;
+			__u8	rsv1;
+			__u8	flags;
+
+			/* DW1 */
+			__le16	datalen;
+			__le16	wbcpl;
+
+			/* DW2 */
+			__le32	bufaddrh;
+
+			/* DW3 */
+			__le32	bufaddrl;
+		} desc1;
+		struct {
+			/* DW0 */
+			__le16	vlan;
+			__le16	flags;
+
+			/* DW1 */
+			__le16	framesize;
+			__u8	errstat;
+			__u8	desccnt;
+
+			/* DW2 */
+			__le32	rsshash;
+
+			/* DW3 */
+			__u8	hashfun;
+			__u8	hashtype;
+			__le16	resrv;
+		} descwb;
+	};
+};
+
+enum jme_rxdesc_flags_bits {
+	RXFLAG_OWN	= 0x80,
+	RXFLAG_INT	= 0x40,
+	RXFLAG_64BIT	= 0x20,
+};
+
+enum jme_rxwbdesc_flags_bits {
+	RXWBFLAG_OWN		= 0x8000,
+	RXWBFLAG_INT		= 0x4000,
+	RXWBFLAG_MF		= 0x2000,
+	RXWBFLAG_64BIT		= 0x2000,
+	RXWBFLAG_TCPON		= 0x1000,
+	RXWBFLAG_UDPON		= 0x0800,
+	RXWBFLAG_IPCS		= 0x0400,
+	RXWBFLAG_TCPCS		= 0x0200,
+	RXWBFLAG_UDPCS		= 0x0100,
+	RXWBFLAG_TAGON		= 0x0080,
+	RXWBFLAG_IPV4		= 0x0040,
+	RXWBFLAG_IPV6		= 0x0020,
+	RXWBFLAG_PAUSE		= 0x0010,
+	RXWBFLAG_MAGIC		= 0x0008,
+	RXWBFLAG_WAKEUP		= 0x0004,
+	RXWBFLAG_DEST		= 0x0003,
+	RXWBFLAG_DEST_UNI	= 0x0001,
+	RXWBFLAG_DEST_MUL	= 0x0002,
+	RXWBFLAG_DEST_BRO	= 0x0003,
+};
+
+enum jme_rxwbdesc_desccnt_mask {
+	RXWBDCNT_WBCPL	= 0x80,
+	RXWBDCNT_DCNT	= 0x7F,
+};
+
+enum jme_rxwbdesc_errstat_bits {
+	RXWBERR_LIMIT	= 0x80,
+	RXWBERR_MIIER	= 0x40,
+	RXWBERR_NIBON	= 0x20,
+	RXWBERR_COLON	= 0x10,
+	RXWBERR_ABORT	= 0x08,
+	RXWBERR_SHORT	= 0x04,
+	RXWBERR_OVERUN	= 0x02,
+	RXWBERR_CRCERR	= 0x01,
+	RXWBERR_ALLERR	= 0xFF,
+};
+
+/*
+ * Buffer information corresponding to ring descriptors.
+ */
+struct jme_buffer_info {
+	struct sk_buff *skb;
+	dma_addr_t mapping;
+	int len;
+	int nr_desc;
+	unsigned long start_xmit;
+};
+
+/*
+ * The structure holding buffer information and ring descriptors all together.
+ */
+#define MAX_RING_DESC_NR	1024
+struct jme_ring {
+	void *alloc;		/* pointer to allocated memory */
+	void *desc;		/* pointer to ring memory  */
+	dma_addr_t dmaalloc;	/* phys address of ring alloc */
+	dma_addr_t dma;		/* phys address for ring dma */
+
+	/* Buffer information corresponding to each descriptor */
+	struct jme_buffer_info bufinf[MAX_RING_DESC_NR];
+
+	int next_to_use;
+	atomic_t next_to_clean;
+	atomic_t nr_free;
+};
+
+#define NET_STAT(priv) (priv->dev->stats)
+#define NETDEV_GET_STATS(netdev, fun_ptr)
+#define DECLARE_NET_DEVICE_STATS
+
+#define DECLARE_NAPI_STRUCT struct napi_struct napi;
+#define NETIF_NAPI_SET(dev, napis, pollfn, q) \
+	netif_napi_add(dev, napis, pollfn, q);
+#define JME_NAPI_HOLDER(holder) struct napi_struct *holder
+#define JME_NAPI_WEIGHT(w) int w
+#define JME_NAPI_WEIGHT_VAL(w) w
+#define JME_NAPI_WEIGHT_SET(w, r)
+#define JME_RX_COMPLETE(dev, napis) netif_rx_complete(dev, napis)
+#define JME_NAPI_ENABLE(priv) napi_enable(&priv->napi);
+#define JME_NAPI_DISABLE(priv) \
+	if (!napi_disable_pending(&priv->napi)) \
+		napi_disable(&priv->napi);
+#define JME_RX_SCHEDULE_PREP(priv) \
+	netif_rx_schedule_prep(priv->dev, &priv->napi)
+#define JME_RX_SCHEDULE(priv) \
+	__netif_rx_schedule(priv->dev, &priv->napi);
+
+/*
+ * Jmac Adapter Private data
+ */
+#define SHADOW_REG_NR 8
+struct jme_adapter {
+	struct pci_dev          *pdev;
+	struct net_device       *dev;
+	void __iomem            *regs;
+	dma_addr_t		shadow_dma;
+	u32			*shadow_regs;
+	struct mii_if_info	mii_if;
+	struct jme_ring		rxring[RX_RING_NR];
+	struct jme_ring		txring[TX_RING_NR];
+	spinlock_t		phy_lock;
+	spinlock_t		macaddr_lock;
+	spinlock_t		rxmcs_lock;
+	struct tasklet_struct	rxempty_task;
+	struct tasklet_struct	rxclean_task;
+	struct tasklet_struct	txclean_task;
+	struct tasklet_struct	linkch_task;
+	struct tasklet_struct	pcc_task;
+	unsigned long		flags;
+	u32			reg_txcs;
+	u32			reg_txpfc;
+	u32			reg_rxcs;
+	u32			reg_rxmcs;
+	u32			reg_ghc;
+	u32			reg_pmcs;
+	u32			phylink;
+	u32			tx_ring_size;
+	u32			tx_ring_mask;
+	u32			tx_wake_threshold;
+	u32			rx_ring_size;
+	u32			rx_ring_mask;
+	u8			mrrs;
+	unsigned int		fpgaver;
+	unsigned int		chiprev;
+	u8			rev;
+	u32			msg_enable;
+	struct ethtool_cmd	old_ecmd;
+	unsigned int		old_mtu;
+	struct vlan_group	*vlgrp;
+	struct dynpcc_info	dpi;
+	atomic_t		intr_sem;
+	atomic_t		link_changing;
+	atomic_t		tx_cleaning;
+	atomic_t		rx_cleaning;
+	atomic_t		rx_empty;
+	int			(*jme_rx)(struct sk_buff *skb);
+	int			(*jme_vlan_rx)(struct sk_buff *skb,
+					  struct vlan_group *grp,
+					  unsigned short vlan_tag);
+	DECLARE_NAPI_STRUCT
+	DECLARE_NET_DEVICE_STATS
+};
+
+enum shadow_reg_val {
+	SHADOW_IEVE = 0,
+};
+
+enum jme_flags_bits {
+	JME_FLAG_MSI		= 1,
+	JME_FLAG_SSET		= 2,
+	JME_FLAG_TXCSUM		= 3,
+	JME_FLAG_TSO		= 4,
+	JME_FLAG_POLL		= 5,
+	JME_FLAG_SHUTDOWN	= 6,
+};
+
+#define TX_TIMEOUT		(5 * HZ)
+#define JME_REG_LEN		0x500
+#define MAX_ETHERNET_JUMBO_PACKET_SIZE 9216
+
+static inline struct jme_adapter*
+jme_napi_priv(struct napi_struct *napi)
+{
+	struct jme_adapter *jme;
+	jme = container_of(napi, struct jme_adapter, napi);
+	return jme;
+}
+
+/*
+ * MMaped I/O Resters
+ */
+enum jme_iomap_offsets {
+	JME_MAC		= 0x0000,
+	JME_PHY		= 0x0400,
+	JME_MISC	= 0x0800,
+	JME_RSS		= 0x0C00,
+};
+
+enum jme_iomap_lens {
+	JME_MAC_LEN	= 0x80,
+	JME_PHY_LEN	= 0x58,
+	JME_MISC_LEN	= 0x98,
+	JME_RSS_LEN	= 0xFF,
+};
+
+enum jme_iomap_regs {
+	JME_TXCS	= JME_MAC | 0x00, /* Transmit Control and Status */
+	JME_TXDBA_LO	= JME_MAC | 0x04, /* Transmit Queue Desc Base Addr */
+	JME_TXDBA_HI	= JME_MAC | 0x08, /* Transmit Queue Desc Base Addr */
+	JME_TXQDC	= JME_MAC | 0x0C, /* Transmit Queue Desc Count */
+	JME_TXNDA	= JME_MAC | 0x10, /* Transmit Queue Next Desc Addr */
+	JME_TXMCS	= JME_MAC | 0x14, /* Transmit MAC Control Status */
+	JME_TXPFC	= JME_MAC | 0x18, /* Transmit Pause Frame Control */
+	JME_TXTRHD	= JME_MAC | 0x1C, /* Transmit Timer/Retry@Half-Dup */
+
+	JME_RXCS	= JME_MAC | 0x20, /* Receive Control and Status */
+	JME_RXDBA_LO	= JME_MAC | 0x24, /* Receive Queue Desc Base Addr */
+	JME_RXDBA_HI	= JME_MAC | 0x28, /* Receive Queue Desc Base Addr */
+	JME_RXQDC	= JME_MAC | 0x2C, /* Receive Queue Desc Count */
+	JME_RXNDA	= JME_MAC | 0x30, /* Receive Queue Next Desc Addr */
+	JME_RXMCS	= JME_MAC | 0x34, /* Receive MAC Control Status */
+	JME_RXUMA_LO	= JME_MAC | 0x38, /* Receive Unicast MAC Address */
+	JME_RXUMA_HI	= JME_MAC | 0x3C, /* Receive Unicast MAC Address */
+	JME_RXMCHT_LO	= JME_MAC | 0x40, /* Recv Multicast Addr HashTable */
+	JME_RXMCHT_HI	= JME_MAC | 0x44, /* Recv Multicast Addr HashTable */
+	JME_WFODP	= JME_MAC | 0x48, /* Wakeup Frame Output Data Port */
+	JME_WFOI	= JME_MAC | 0x4C, /* Wakeup Frame Output Interface */
+
+	JME_SMI		= JME_MAC | 0x50, /* Station Management Interface */
+	JME_GHC		= JME_MAC | 0x54, /* Global Host Control */
+	JME_PMCS	= JME_MAC | 0x60, /* Power Management Control/Stat */
+
+
+	JME_PHY_CS	= JME_PHY | 0x28, /* PHY Ctrl and Status Register */
+	JME_PHY_LINK	= JME_PHY | 0x30, /* PHY Link Status Register */
+	JME_SMBCSR	= JME_PHY | 0x40, /* SMB Control and Status */
+	JME_SMBINTF	= JME_PHY | 0x44, /* SMB Interface */
+
+
+	JME_TMCSR	= JME_MISC | 0x00, /* Timer Control/Status Register */
+	JME_GPREG0	= JME_MISC | 0x08, /* General purpose REG-0 */
+	JME_GPREG1	= JME_MISC | 0x0C, /* General purpose REG-1 */
+	JME_IEVE	= JME_MISC | 0x20, /* Interrupt Event Status */
+	JME_IREQ	= JME_MISC | 0x24, /* Intr Req Status(For Debug) */
+	JME_IENS	= JME_MISC | 0x28, /* Intr Enable - Setting Port */
+	JME_IENC	= JME_MISC | 0x2C, /* Interrupt Enable - Clear Port */
+	JME_PCCRX0	= JME_MISC | 0x30, /* PCC Control for RX Queue 0 */
+	JME_PCCTX	= JME_MISC | 0x40, /* PCC Control for TX Queues */
+	JME_CHIPMODE	= JME_MISC | 0x44, /* Identify FPGA Version */
+	JME_SHBA_HI	= JME_MISC | 0x48, /* Shadow Register Base HI */
+	JME_SHBA_LO	= JME_MISC | 0x4C, /* Shadow Register Base LO */
+	JME_TIMER1	= JME_MISC | 0x70, /* Timer1 */
+	JME_TIMER2	= JME_MISC | 0x74, /* Timer2 */
+	JME_APMC	= JME_MISC | 0x7C, /* Aggressive Power Mode Control */
+	JME_PCCSRX0	= JME_MISC | 0x80, /* PCC Status of RX0 */
+};
+
+/*
+ * TX Control/Status Bits
+ */
+enum jme_txcs_bits {
+	TXCS_QUEUE7S	= 0x00008000,
+	TXCS_QUEUE6S	= 0x00004000,
+	TXCS_QUEUE5S	= 0x00002000,
+	TXCS_QUEUE4S	= 0x00001000,
+	TXCS_QUEUE3S	= 0x00000800,
+	TXCS_QUEUE2S	= 0x00000400,
+	TXCS_QUEUE1S	= 0x00000200,
+	TXCS_QUEUE0S	= 0x00000100,
+	TXCS_FIFOTH	= 0x000000C0,
+	TXCS_DMASIZE	= 0x00000030,
+	TXCS_BURST	= 0x00000004,
+	TXCS_ENABLE	= 0x00000001,
+};
+
+enum jme_txcs_value {
+	TXCS_FIFOTH_16QW	= 0x000000C0,
+	TXCS_FIFOTH_12QW	= 0x00000080,
+	TXCS_FIFOTH_8QW		= 0x00000040,
+	TXCS_FIFOTH_4QW		= 0x00000000,
+
+	TXCS_DMASIZE_64B	= 0x00000000,
+	TXCS_DMASIZE_128B	= 0x00000010,
+	TXCS_DMASIZE_256B	= 0x00000020,
+	TXCS_DMASIZE_512B	= 0x00000030,
+
+	TXCS_SELECT_QUEUE0	= 0x00000000,
+	TXCS_SELECT_QUEUE1	= 0x00010000,
+	TXCS_SELECT_QUEUE2	= 0x00020000,
+	TXCS_SELECT_QUEUE3	= 0x00030000,
+	TXCS_SELECT_QUEUE4	= 0x00040000,
+	TXCS_SELECT_QUEUE5	= 0x00050000,
+	TXCS_SELECT_QUEUE6	= 0x00060000,
+	TXCS_SELECT_QUEUE7	= 0x00070000,
+
+	TXCS_DEFAULT		= TXCS_FIFOTH_4QW |
+				  TXCS_BURST,
+};
+
+#define JME_TX_DISABLE_TIMEOUT 10 /* 10 msec */
+
+/*
+ * TX MAC Control/Status Bits
+ */
+enum jme_txmcs_bit_masks {
+	TXMCS_IFG2		= 0xC0000000,
+	TXMCS_IFG1		= 0x30000000,
+	TXMCS_TTHOLD		= 0x00000300,
+	TXMCS_FBURST		= 0x00000080,
+	TXMCS_CARRIEREXT	= 0x00000040,
+	TXMCS_DEFER		= 0x00000020,
+	TXMCS_BACKOFF		= 0x00000010,
+	TXMCS_CARRIERSENSE	= 0x00000008,
+	TXMCS_COLLISION		= 0x00000004,
+	TXMCS_CRC		= 0x00000002,
+	TXMCS_PADDING		= 0x00000001,
+};
+
+enum jme_txmcs_values {
+	TXMCS_IFG2_6_4		= 0x00000000,
+	TXMCS_IFG2_8_5		= 0x40000000,
+	TXMCS_IFG2_10_6		= 0x80000000,
+	TXMCS_IFG2_12_7		= 0xC0000000,
+
+	TXMCS_IFG1_8_4		= 0x00000000,
+	TXMCS_IFG1_12_6		= 0x10000000,
+	TXMCS_IFG1_16_8		= 0x20000000,
+	TXMCS_IFG1_20_10	= 0x30000000,
+
+	TXMCS_TTHOLD_1_8	= 0x00000000,
+	TXMCS_TTHOLD_1_4	= 0x00000100,
+	TXMCS_TTHOLD_1_2	= 0x00000200,
+	TXMCS_TTHOLD_FULL	= 0x00000300,
+
+	TXMCS_DEFAULT		= TXMCS_IFG2_8_5 |
+				  TXMCS_IFG1_16_8 |
+				  TXMCS_TTHOLD_FULL |
+				  TXMCS_DEFER |
+				  TXMCS_CRC |
+				  TXMCS_PADDING,
+};
+
+enum jme_txpfc_bits_masks {
+	TXPFC_VLAN_TAG		= 0xFFFF0000,
+	TXPFC_VLAN_EN		= 0x00008000,
+	TXPFC_PF_EN		= 0x00000001,
+};
+
+enum jme_txtrhd_bits_masks {
+	TXTRHD_TXPEN		= 0x80000000,
+	TXTRHD_TXP		= 0x7FFFFF00,
+	TXTRHD_TXREN		= 0x00000080,
+	TXTRHD_TXRL		= 0x0000007F,
+};
+
+enum jme_txtrhd_shifts {
+	TXTRHD_TXP_SHIFT	= 8,
+	TXTRHD_TXRL_SHIFT	= 0,
+};
+
+/*
+ * RX Control/Status Bits
+ */
+enum jme_rxcs_bit_masks {
+	/* FIFO full threshold for transmitting Tx Pause Packet */
+	RXCS_FIFOTHTP	= 0x30000000,
+	/* FIFO threshold for processing next packet */
+	RXCS_FIFOTHNP	= 0x0C000000,
+	RXCS_DMAREQSZ	= 0x03000000, /* DMA Request Size */
+	RXCS_QUEUESEL	= 0x00030000, /* Queue selection */
+	RXCS_RETRYGAP	= 0x0000F000, /* RX Desc full retry gap */
+	RXCS_RETRYCNT	= 0x00000F00, /* RX Desc full retry counter */
+	RXCS_WAKEUP	= 0x00000040, /* Enable receive wakeup packet */
+	RXCS_MAGIC	= 0x00000020, /* Enable receive magic packet */
+	RXCS_SHORT	= 0x00000010, /* Enable receive short packet */
+	RXCS_ABORT	= 0x00000008, /* Enable receive errorr packet */
+	RXCS_QST	= 0x00000004, /* Receive queue start */
+	RXCS_SUSPEND	= 0x00000002,
+	RXCS_ENABLE	= 0x00000001,
+};
+
+enum jme_rxcs_values {
+	RXCS_FIFOTHTP_16T	= 0x00000000,
+	RXCS_FIFOTHTP_32T	= 0x10000000,
+	RXCS_FIFOTHTP_64T	= 0x20000000,
+	RXCS_FIFOTHTP_128T	= 0x30000000,
+
+	RXCS_FIFOTHNP_16QW	= 0x00000000,
+	RXCS_FIFOTHNP_32QW	= 0x04000000,
+	RXCS_FIFOTHNP_64QW	= 0x08000000,
+	RXCS_FIFOTHNP_128QW	= 0x0C000000,
+
+	RXCS_DMAREQSZ_16B	= 0x00000000,
+	RXCS_DMAREQSZ_32B	= 0x01000000,
+	RXCS_DMAREQSZ_64B	= 0x02000000,
+	RXCS_DMAREQSZ_128B	= 0x03000000,
+
+	RXCS_QUEUESEL_Q0	= 0x00000000,
+	RXCS_QUEUESEL_Q1	= 0x00010000,
+	RXCS_QUEUESEL_Q2	= 0x00020000,
+	RXCS_QUEUESEL_Q3	= 0x00030000,
+
+	RXCS_RETRYGAP_256ns	= 0x00000000,
+	RXCS_RETRYGAP_512ns	= 0x00001000,
+	RXCS_RETRYGAP_1024ns	= 0x00002000,
+	RXCS_RETRYGAP_2048ns	= 0x00003000,
+	RXCS_RETRYGAP_4096ns	= 0x00004000,
+	RXCS_RETRYGAP_8192ns	= 0x00005000,
+	RXCS_RETRYGAP_16384ns	= 0x00006000,
+	RXCS_RETRYGAP_32768ns	= 0x00007000,
+
+	RXCS_RETRYCNT_0		= 0x00000000,
+	RXCS_RETRYCNT_4		= 0x00000100,
+	RXCS_RETRYCNT_8		= 0x00000200,
+	RXCS_RETRYCNT_12	= 0x00000300,
+	RXCS_RETRYCNT_16	= 0x00000400,
+	RXCS_RETRYCNT_20	= 0x00000500,
+	RXCS_RETRYCNT_24	= 0x00000600,
+	RXCS_RETRYCNT_28	= 0x00000700,
+	RXCS_RETRYCNT_32	= 0x00000800,
+	RXCS_RETRYCNT_36	= 0x00000900,
+	RXCS_RETRYCNT_40	= 0x00000A00,
+	RXCS_RETRYCNT_44	= 0x00000B00,
+	RXCS_RETRYCNT_48	= 0x00000C00,
+	RXCS_RETRYCNT_52	= 0x00000D00,
+	RXCS_RETRYCNT_56	= 0x00000E00,
+	RXCS_RETRYCNT_60	= 0x00000F00,
+
+	RXCS_DEFAULT		= RXCS_FIFOTHTP_128T |
+				  RXCS_FIFOTHNP_128QW |
+				  RXCS_DMAREQSZ_128B |
+				  RXCS_RETRYGAP_256ns |
+				  RXCS_RETRYCNT_32,
+};
+
+#define JME_RX_DISABLE_TIMEOUT 10 /* 10 msec */
+
+/*
+ * RX MAC Control/Status Bits
+ */
+enum jme_rxmcs_bits {
+	RXMCS_ALLFRAME		= 0x00000800,
+	RXMCS_BRDFRAME		= 0x00000400,
+	RXMCS_MULFRAME		= 0x00000200,
+	RXMCS_UNIFRAME		= 0x00000100,
+	RXMCS_ALLMULFRAME	= 0x00000080,
+	RXMCS_MULFILTERED	= 0x00000040,
+	RXMCS_RXCOLLDEC		= 0x00000020,
+	RXMCS_FLOWCTRL		= 0x00000008,
+	RXMCS_VTAGRM		= 0x00000004,
+	RXMCS_PREPAD		= 0x00000002,
+	RXMCS_CHECKSUM		= 0x00000001,
+
+	RXMCS_DEFAULT		= RXMCS_VTAGRM |
+				  RXMCS_PREPAD |
+				  RXMCS_FLOWCTRL |
+				  RXMCS_CHECKSUM,
+};
+
+/*
+ * Wakeup Frame setup interface registers
+ */
+#define WAKEUP_FRAME_NR	8
+#define WAKEUP_FRAME_MASK_DWNR	4
+
+enum jme_wfoi_bit_masks {
+	WFOI_MASK_SEL		= 0x00000070,
+	WFOI_CRC_SEL		= 0x00000008,
+	WFOI_FRAME_SEL		= 0x00000007,
+};
+
+enum jme_wfoi_shifts {
+	WFOI_MASK_SHIFT		= 4,
+};
+
+/*
+ * SMI Related definitions
+ */
+enum jme_smi_bit_mask {
+	SMI_DATA_MASK		= 0xFFFF0000,
+	SMI_REG_ADDR_MASK	= 0x0000F800,
+	SMI_PHY_ADDR_MASK	= 0x000007C0,
+	SMI_OP_WRITE		= 0x00000020,
+	/* Set to 1, after req done it'll be cleared to 0 */
+	SMI_OP_REQ		= 0x00000010,
+	SMI_OP_MDIO		= 0x00000008, /* Software assess In/Out */
+	SMI_OP_MDOE		= 0x00000004, /* Software Output Enable */
+	SMI_OP_MDC		= 0x00000002, /* Software CLK Control */
+	SMI_OP_MDEN		= 0x00000001, /* Software access Enable */
+};
+
+enum jme_smi_bit_shift {
+	SMI_DATA_SHIFT		= 16,
+	SMI_REG_ADDR_SHIFT	= 11,
+	SMI_PHY_ADDR_SHIFT	= 6,
+};
+
+static inline u32 smi_reg_addr(int x)
+{
+	return (x << SMI_REG_ADDR_SHIFT) & SMI_REG_ADDR_MASK;
+}
+
+static inline u32 smi_phy_addr(int x)
+{
+	return (x << SMI_PHY_ADDR_SHIFT) & SMI_PHY_ADDR_MASK;
+}
+
+#define JME_PHY_TIMEOUT 100 /* 100 msec */
+#define JME_PHY_REG_NR 32
+
+/*
+ * Global Host Control
+ */
+enum jme_ghc_bit_mask {
+	GHC_SWRST	= 0x40000000,
+	GHC_DPX		= 0x00000040,
+	GHC_SPEED	= 0x00000030,
+	GHC_LINK_POLL	= 0x00000001,
+};
+
+enum jme_ghc_speed_val {
+	GHC_SPEED_10M	= 0x00000010,
+	GHC_SPEED_100M	= 0x00000020,
+	GHC_SPEED_1000M	= 0x00000030,
+};
+
+/*
+ * Power management control and status register
+ */
+enum jme_pmcs_bit_masks {
+	PMCS_WF7DET	= 0x80000000,
+	PMCS_WF6DET	= 0x40000000,
+	PMCS_WF5DET	= 0x20000000,
+	PMCS_WF4DET	= 0x10000000,
+	PMCS_WF3DET	= 0x08000000,
+	PMCS_WF2DET	= 0x04000000,
+	PMCS_WF1DET	= 0x02000000,
+	PMCS_WF0DET	= 0x01000000,
+	PMCS_LFDET	= 0x00040000,
+	PMCS_LRDET	= 0x00020000,
+	PMCS_MFDET	= 0x00010000,
+	PMCS_WF7EN	= 0x00008000,
+	PMCS_WF6EN	= 0x00004000,
+	PMCS_WF5EN	= 0x00002000,
+	PMCS_WF4EN	= 0x00001000,
+	PMCS_WF3EN	= 0x00000800,
+	PMCS_WF2EN	= 0x00000400,
+	PMCS_WF1EN	= 0x00000200,
+	PMCS_WF0EN	= 0x00000100,
+	PMCS_LFEN	= 0x00000004,
+	PMCS_LREN	= 0x00000002,
+	PMCS_MFEN	= 0x00000001,
+};
+
+/*
+ * Giga PHY Status Registers
+ */
+enum jme_phy_link_bit_mask {
+	PHY_LINK_SPEED_MASK		= 0x0000C000,
+	PHY_LINK_DUPLEX			= 0x00002000,
+	PHY_LINK_SPEEDDPU_RESOLVED	= 0x00000800,
+	PHY_LINK_UP			= 0x00000400,
+	PHY_LINK_AUTONEG_COMPLETE	= 0x00000200,
+	PHY_LINK_MDI_STAT		= 0x00000040,
+};
+
+enum jme_phy_link_speed_val {
+	PHY_LINK_SPEED_10M		= 0x00000000,
+	PHY_LINK_SPEED_100M		= 0x00004000,
+	PHY_LINK_SPEED_1000M		= 0x00008000,
+};
+
+#define JME_SPDRSV_TIMEOUT	500	/* 500 us */
+
+/*
+ * SMB Control and Status
+ */
+enum jme_smbcsr_bit_mask {
+	SMBCSR_CNACK	= 0x00020000,
+	SMBCSR_RELOAD	= 0x00010000,
+	SMBCSR_EEPROMD	= 0x00000020,
+	SMBCSR_INITDONE	= 0x00000010,
+	SMBCSR_BUSY	= 0x0000000F,
+};
+
+enum jme_smbintf_bit_mask {
+	SMBINTF_HWDATR	= 0xFF000000,
+	SMBINTF_HWDATW	= 0x00FF0000,
+	SMBINTF_HWADDR	= 0x0000FF00,
+	SMBINTF_HWRWN	= 0x00000020,
+	SMBINTF_HWCMD	= 0x00000010,
+	SMBINTF_FASTM	= 0x00000008,
+	SMBINTF_GPIOSCL	= 0x00000004,
+	SMBINTF_GPIOSDA	= 0x00000002,
+	SMBINTF_GPIOEN	= 0x00000001,
+};
+
+enum jme_smbintf_vals {
+	SMBINTF_HWRWN_READ	= 0x00000020,
+	SMBINTF_HWRWN_WRITE	= 0x00000000,
+};
+
+enum jme_smbintf_shifts {
+	SMBINTF_HWDATR_SHIFT	= 24,
+	SMBINTF_HWDATW_SHIFT	= 16,
+	SMBINTF_HWADDR_SHIFT	= 8,
+};
+
+#define JME_EEPROM_RELOAD_TIMEOUT 2000 /* 2000 msec */
+#define JME_SMB_BUSY_TIMEOUT 20 /* 20 msec */
+#define JME_SMB_LEN 256
+#define JME_EEPROM_MAGIC 0x250
+
+/*
+ * Timer Control/Status Register
+ */
+enum jme_tmcsr_bit_masks {
+	TMCSR_SWIT	= 0x80000000,
+	TMCSR_EN	= 0x01000000,
+	TMCSR_CNT	= 0x00FFFFFF,
+};
+
+/*
+ * General Purpose REG-0
+ */
+enum jme_gpreg0_masks {
+	GPREG0_DISSH		= 0xFF000000,
+	GPREG0_PCIRLMT		= 0x00300000,
+	GPREG0_PCCNOMUTCLR	= 0x00040000,
+	GPREG0_LNKINTPOLL	= 0x00001000,
+	GPREG0_PCCTMR		= 0x00000300,
+	GPREG0_PHYADDR		= 0x0000001F,
+};
+
+enum jme_gpreg0_vals {
+	GPREG0_DISSH_DW7	= 0x80000000,
+	GPREG0_DISSH_DW6	= 0x40000000,
+	GPREG0_DISSH_DW5	= 0x20000000,
+	GPREG0_DISSH_DW4	= 0x10000000,
+	GPREG0_DISSH_DW3	= 0x08000000,
+	GPREG0_DISSH_DW2	= 0x04000000,
+	GPREG0_DISSH_DW1	= 0x02000000,
+	GPREG0_DISSH_DW0	= 0x01000000,
+	GPREG0_DISSH_ALL	= 0xFF000000,
+
+	GPREG0_PCIRLMT_8	= 0x00000000,
+	GPREG0_PCIRLMT_6	= 0x00100000,
+	GPREG0_PCIRLMT_5	= 0x00200000,
+	GPREG0_PCIRLMT_4	= 0x00300000,
+
+	GPREG0_PCCTMR_16ns	= 0x00000000,
+	GPREG0_PCCTMR_256ns	= 0x00000100,
+	GPREG0_PCCTMR_1us	= 0x00000200,
+	GPREG0_PCCTMR_1ms	= 0x00000300,
+
+	GPREG0_PHYADDR_1	= 0x00000001,
+
+	GPREG0_DEFAULT		= GPREG0_PCIRLMT_4 |
+				  GPREG0_PCCTMR_1us |
+				  GPREG0_PHYADDR_1,
+};
+
+/*
+ * Interrupt Status Bits
+ */
+enum jme_interrupt_bits {
+	INTR_SWINTR	= 0x80000000,
+	INTR_TMINTR	= 0x40000000,
+	INTR_LINKCH	= 0x20000000,
+	INTR_PAUSERCV	= 0x10000000,
+	INTR_MAGICRCV	= 0x08000000,
+	INTR_WAKERCV	= 0x04000000,
+	INTR_PCCRX0TO	= 0x02000000,
+	INTR_PCCRX1TO	= 0x01000000,
+	INTR_PCCRX2TO	= 0x00800000,
+	INTR_PCCRX3TO	= 0x00400000,
+	INTR_PCCTXTO	= 0x00200000,
+	INTR_PCCRX0	= 0x00100000,
+	INTR_PCCRX1	= 0x00080000,
+	INTR_PCCRX2	= 0x00040000,
+	INTR_PCCRX3	= 0x00020000,
+	INTR_PCCTX	= 0x00010000,
+	INTR_RX3EMP	= 0x00008000,
+	INTR_RX2EMP	= 0x00004000,
+	INTR_RX1EMP	= 0x00002000,
+	INTR_RX0EMP	= 0x00001000,
+	INTR_RX3	= 0x00000800,
+	INTR_RX2	= 0x00000400,
+	INTR_RX1	= 0x00000200,
+	INTR_RX0	= 0x00000100,
+	INTR_TX7	= 0x00000080,
+	INTR_TX6	= 0x00000040,
+	INTR_TX5	= 0x00000020,
+	INTR_TX4	= 0x00000010,
+	INTR_TX3	= 0x00000008,
+	INTR_TX2	= 0x00000004,
+	INTR_TX1	= 0x00000002,
+	INTR_TX0	= 0x00000001,
+};
+
+static const u32 INTR_ENABLE = INTR_SWINTR |
+				 INTR_TMINTR |
+				 INTR_LINKCH |
+				 INTR_PCCRX0TO |
+				 INTR_PCCRX0 |
+				 INTR_PCCTXTO |
+				 INTR_PCCTX |
+				 INTR_RX0EMP;
+
+/*
+ * PCC Control Registers
+ */
+enum jme_pccrx_masks {
+	PCCRXTO_MASK	= 0xFFFF0000,
+	PCCRX_MASK	= 0x0000FF00,
+};
+
+enum jme_pcctx_masks {
+	PCCTXTO_MASK	= 0xFFFF0000,
+	PCCTX_MASK	= 0x0000FF00,
+	PCCTX_QS_MASK	= 0x000000FF,
+};
+
+enum jme_pccrx_shifts {
+	PCCRXTO_SHIFT	= 16,
+	PCCRX_SHIFT	= 8,
+};
+
+enum jme_pcctx_shifts {
+	PCCTXTO_SHIFT	= 16,
+	PCCTX_SHIFT	= 8,
+};
+
+enum jme_pcctx_bits {
+	PCCTXQ0_EN	= 0x00000001,
+	PCCTXQ1_EN	= 0x00000002,
+	PCCTXQ2_EN	= 0x00000004,
+	PCCTXQ3_EN	= 0x00000008,
+	PCCTXQ4_EN	= 0x00000010,
+	PCCTXQ5_EN	= 0x00000020,
+	PCCTXQ6_EN	= 0x00000040,
+	PCCTXQ7_EN	= 0x00000080,
+};
+
+/*
+ * Chip Mode Register
+ */
+enum jme_chipmode_bit_masks {
+	CM_FPGAVER_MASK		= 0xFFFF0000,
+	CM_CHIPREV_MASK		= 0x0000FF00,
+	CM_CHIPMODE_MASK	= 0x0000000F,
+};
+
+enum jme_chipmode_shifts {
+	CM_FPGAVER_SHIFT	= 16,
+	CM_CHIPREV_SHIFT	= 8,
+};
+
+/*
+ * Shadow base address register bits
+ */
+enum jme_shadow_base_address_bits {
+	SHBA_POSTEN	= 0x1,
+};
+
+/*
+ * Aggressive Power Mode Control
+ */
+enum jme_apmc_bits {
+	JME_APMC_PCIE_SD_EN	= 0x40000000,
+	JME_APMC_PSEUDO_HP_EN	= 0x20000000,
+	JME_APMC_EPIEN		= 0x04000000,
+	JME_APMC_EPIEN_CTRL	= 0x03000000,
+};
+
+enum jme_apmc_values {
+	JME_APMC_EPIEN_CTRL_EN	= 0x02000000,
+	JME_APMC_EPIEN_CTRL_DIS	= 0x01000000,
+};
+
+#define APMC_PHP_SHUTDOWN_DELAY	(10 * 1000 * 1000)
+
+#ifdef REG_DEBUG
+static char *MAC_REG_NAME[] = {
+	"JME_TXCS",      "JME_TXDBA_LO",  "JME_TXDBA_HI", "JME_TXQDC",
+	"JME_TXNDA",     "JME_TXMCS",     "JME_TXPFC",    "JME_TXTRHD",
+	"JME_RXCS",      "JME_RXDBA_LO",  "JME_RXDBA_HI", "JME_RXQDC",
+	"JME_RXNDA",     "JME_RXMCS",     "JME_RXUMA_LO", "JME_RXUMA_HI",
+	"JME_RXMCHT_LO", "JME_RXMCHT_HI", "JME_WFODP",    "JME_WFOI",
+	"JME_SMI",       "JME_GHC",       "UNKNOWN",      "UNKNOWN",
+	"JME_PMCS"};
+
+static char *PE_REG_NAME[] = {
+	"UNKNOWN",      "UNKNOWN",     "UNKNOWN",    "UNKNOWN",
+	"UNKNOWN",      "UNKNOWN",     "UNKNOWN",    "UNKNOWN",
+	"UNKNOWN",      "UNKNOWN",     "JME_PHY_CS", "UNKNOWN",
+	"JME_PHY_LINK", "UNKNOWN",     "UNKNOWN",    "UNKNOWN",
+	"JME_SMBCSR",   "JME_SMBINTF"};
+
+static char *MISC_REG_NAME[] = {
+	"JME_TMCSR",  "JME_GPIO",     "JME_GPREG0",  "JME_GPREG1",
+	"JME_IEVE",   "JME_IREQ",     "JME_IENS",    "JME_IENC",
+	"JME_PCCRX0", "JME_PCCRX1",   "JME_PCCRX2",  "JME_PCCRX3",
+	"JME_PCCTX0", "JME_CHIPMODE", "JME_SHBA_HI", "JME_SHBA_LO",
+	"UNKNOWN",    "UNKNOWN",      "UNKNOWN",     "UNKNOWN",
+	"UNKNOWN",    "UNKNOWN",      "UNKNOWN",     "UNKNOWN",
+	"UNKNOWN",    "UNKNOWN",      "UNKNOWN",     "UNKNOWN",
+	"JME_TIMER1", "JME_TIMER2",   "UNKNOWN",     "JME_APMC",
+	"JME_PCCSRX0"};
+
+static inline void reg_dbg(const struct jme_adapter *jme,
+		const char *msg, u32 val, u32 reg)
+{
+	const char *regname;
+	switch (reg & 0xF00) {
+	case 0x000:
+		regname = MAC_REG_NAME[(reg & 0xFF) >> 2];
+		break;
+	case 0x400:
+		regname = PE_REG_NAME[(reg & 0xFF) >> 2];
+		break;
+	case 0x800:
+		regname = MISC_REG_NAME[(reg & 0xFF) >> 2];
+		break;
+	default:
+		regname = PE_REG_NAME[0];
+	}
+	printk(KERN_DEBUG "%s: %-20s %08x@%s\n", jme->dev->name,
+			msg, val, regname);
+}
+#else
+static inline void reg_dbg(const struct jme_adapter *jme,
+		const char *msg, u32 val, u32 reg) {}
+#endif
+
+/*
+ * Read/Write MMaped I/O Registers
+ */
+static inline u32 jread32(struct jme_adapter *jme, u32 reg)
+{
+	return readl(jme->regs + reg);
+}
+
+static inline void jwrite32(struct jme_adapter *jme, u32 reg, u32 val)
+{
+	reg_dbg(jme, "REG WRITE", val, reg);
+	writel(val, jme->regs + reg);
+	reg_dbg(jme, "VAL AFTER WRITE", readl(jme->regs + reg), reg);
+}
+
+static inline void jwrite32f(struct jme_adapter *jme, u32 reg, u32 val)
+{
+	/*
+	 * Read after write should cause flush
+	 */
+	reg_dbg(jme, "REG WRITE FLUSH", val, reg);
+	writel(val, jme->regs + reg);
+	readl(jme->regs + reg);
+	reg_dbg(jme, "VAL AFTER WRITE", readl(jme->regs + reg), reg);
+}
+
+/*
+ * PHY Regs
+ */
+enum jme_phy_reg17_bit_masks {
+	PREG17_SPEED		= 0xC000,
+	PREG17_DUPLEX		= 0x2000,
+	PREG17_SPDRSV		= 0x0800,
+	PREG17_LNKUP		= 0x0400,
+	PREG17_MDI		= 0x0040,
+};
+
+enum jme_phy_reg17_vals {
+	PREG17_SPEED_10M	= 0x0000,
+	PREG17_SPEED_100M	= 0x4000,
+	PREG17_SPEED_1000M	= 0x8000,
+};
+
+#define BMSR_ANCOMP               0x0020
+
+/*
+ * Workaround
+ */
+static inline int is_buggy250(unsigned short device, unsigned int chiprev)
+{
+	return device == PCI_DEVICE_ID_JMICRON_JMC250 && chiprev == 0x11;
+}
+
+/*
+ * Function prototypes
+ */
+static int jme_set_settings(struct net_device *netdev,
+				struct ethtool_cmd *ecmd);
+static void jme_set_multi(struct net_device *netdev);
+
+#endif